Why do Windows and Linux see different files on a DVD ROM?












5















I have a DVD ROM with some teaching resources on it (Headway Beginner's English teaching teacher's DVD). When I look at the DVD from a Ubuntu machine, I see one set of files (which includes a setup-linux file among other things, although that doesn't work).



When I view the same DVD from a Windows machine, I see a different set of files, including a setup-windows.exe file.



Neither machine sees all the files, but there are some common to both.



My questions are:




  1. How does this work?

  2. How can I see the all the files when using Ubuntu?


Edit: this is not due to files being "hidden" when viewed in a file manager, lower level things like "ls -a" do not reveal the missing files.



Edit 2: I'm using Ubuntu 18.04 LTS






mount dvd







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spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • You haven't said which Ubuntu release you are using, but in nautilus (or 'Files' the file manager for gnome) if you go to icon-view mode and click on the menu you can click "Show Hidden Files" and you should see all files. If in details (or list) mode the option is somewhat hidden (on my 19.04 box; sorry I don't use nautilus normally). Windows by default uses a fs (file-system) flag to hide files, where as *nix (Ubuntu, any GNU/Linux, apple or unix) use a '.' as the first character of filename to make a file 'hidden'.

    – guiverc
    2 hours ago






  • 1





    This is not a hidden files thing - using ls -a in Linux does not show the missing files. And neither does "Show hidden files" in Windows explorer.

    – spookylukey
    2 hours ago
















5















I have a DVD ROM with some teaching resources on it (Headway Beginner's English teaching teacher's DVD). When I look at the DVD from a Ubuntu machine, I see one set of files (which includes a setup-linux file among other things, although that doesn't work).



When I view the same DVD from a Windows machine, I see a different set of files, including a setup-windows.exe file.



Neither machine sees all the files, but there are some common to both.



My questions are:




  1. How does this work?

  2. How can I see the all the files when using Ubuntu?


Edit: this is not due to files being "hidden" when viewed in a file manager, lower level things like "ls -a" do not reveal the missing files.



Edit 2: I'm using Ubuntu 18.04 LTS






mount dvd







share|improve this question









New contributor




spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • You haven't said which Ubuntu release you are using, but in nautilus (or 'Files' the file manager for gnome) if you go to icon-view mode and click on the menu you can click "Show Hidden Files" and you should see all files. If in details (or list) mode the option is somewhat hidden (on my 19.04 box; sorry I don't use nautilus normally). Windows by default uses a fs (file-system) flag to hide files, where as *nix (Ubuntu, any GNU/Linux, apple or unix) use a '.' as the first character of filename to make a file 'hidden'.

    – guiverc
    2 hours ago






  • 1





    This is not a hidden files thing - using ls -a in Linux does not show the missing files. And neither does "Show hidden files" in Windows explorer.

    – spookylukey
    2 hours ago














5












5








5








I have a DVD ROM with some teaching resources on it (Headway Beginner's English teaching teacher's DVD). When I look at the DVD from a Ubuntu machine, I see one set of files (which includes a setup-linux file among other things, although that doesn't work).



When I view the same DVD from a Windows machine, I see a different set of files, including a setup-windows.exe file.



Neither machine sees all the files, but there are some common to both.



My questions are:




  1. How does this work?

  2. How can I see the all the files when using Ubuntu?


Edit: this is not due to files being "hidden" when viewed in a file manager, lower level things like "ls -a" do not reveal the missing files.



Edit 2: I'm using Ubuntu 18.04 LTS






mount dvd







share|improve this question









New contributor




spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I have a DVD ROM with some teaching resources on it (Headway Beginner's English teaching teacher's DVD). When I look at the DVD from a Ubuntu machine, I see one set of files (which includes a setup-linux file among other things, although that doesn't work).



When I view the same DVD from a Windows machine, I see a different set of files, including a setup-windows.exe file.



Neither machine sees all the files, but there are some common to both.



My questions are:




  1. How does this work?

  2. How can I see the all the files when using Ubuntu?


Edit: this is not due to files being "hidden" when viewed in a file manager, lower level things like "ls -a" do not reveal the missing files.



Edit 2: I'm using Ubuntu 18.04 LTS






mount dvd




mount dvd






share|improve this question









New contributor




spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 2 hours ago







spookylukey













New contributor




spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 2 hours ago









spookylukeyspookylukey

1285




1285




New contributor




spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






spookylukey is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.













  • You haven't said which Ubuntu release you are using, but in nautilus (or 'Files' the file manager for gnome) if you go to icon-view mode and click on the menu you can click "Show Hidden Files" and you should see all files. If in details (or list) mode the option is somewhat hidden (on my 19.04 box; sorry I don't use nautilus normally). Windows by default uses a fs (file-system) flag to hide files, where as *nix (Ubuntu, any GNU/Linux, apple or unix) use a '.' as the first character of filename to make a file 'hidden'.

    – guiverc
    2 hours ago






  • 1





    This is not a hidden files thing - using ls -a in Linux does not show the missing files. And neither does "Show hidden files" in Windows explorer.

    – spookylukey
    2 hours ago



















  • You haven't said which Ubuntu release you are using, but in nautilus (or 'Files' the file manager for gnome) if you go to icon-view mode and click on the menu you can click "Show Hidden Files" and you should see all files. If in details (or list) mode the option is somewhat hidden (on my 19.04 box; sorry I don't use nautilus normally). Windows by default uses a fs (file-system) flag to hide files, where as *nix (Ubuntu, any GNU/Linux, apple or unix) use a '.' as the first character of filename to make a file 'hidden'.

    – guiverc
    2 hours ago






  • 1





    This is not a hidden files thing - using ls -a in Linux does not show the missing files. And neither does "Show hidden files" in Windows explorer.

    – spookylukey
    2 hours ago

















You haven't said which Ubuntu release you are using, but in nautilus (or 'Files' the file manager for gnome) if you go to icon-view mode and click on the menu you can click "Show Hidden Files" and you should see all files. If in details (or list) mode the option is somewhat hidden (on my 19.04 box; sorry I don't use nautilus normally). Windows by default uses a fs (file-system) flag to hide files, where as *nix (Ubuntu, any GNU/Linux, apple or unix) use a '.' as the first character of filename to make a file 'hidden'.

– guiverc
2 hours ago





You haven't said which Ubuntu release you are using, but in nautilus (or 'Files' the file manager for gnome) if you go to icon-view mode and click on the menu you can click "Show Hidden Files" and you should see all files. If in details (or list) mode the option is somewhat hidden (on my 19.04 box; sorry I don't use nautilus normally). Windows by default uses a fs (file-system) flag to hide files, where as *nix (Ubuntu, any GNU/Linux, apple or unix) use a '.' as the first character of filename to make a file 'hidden'.

– guiverc
2 hours ago




1




1





This is not a hidden files thing - using ls -a in Linux does not show the missing files. And neither does "Show hidden files" in Windows explorer.

– spookylukey
2 hours ago





This is not a hidden files thing - using ls -a in Linux does not show the missing files. And neither does "Show hidden files" in Windows explorer.

– spookylukey
2 hours ago










1 Answer
1






active

oldest

votes


















6














I'm not sure this is the correct answer, but maybe it'll provide you with details that will help you.



It could be because MS-Windows and Unix use different file systems on DVD - even on the same DVD. Files on an optical media are usually arranged using a file system protocol specified in the ISO 9660 standard.



But the standard allows for extensions, and Microsoft has designed their own extension to the standard called "Joliet" that allows Microsoft Windows compatible operating systems to read different file names with more features (longer and support Unicode) than the standard ISO 9660 file system allows.



For Unix operating system, another extension called "Rock Ridge" was developed, to allow even longer file names, Unix-style permissions and a few other things.



It is very common to have both Rock Ridge and Joliet extensions on the same optical media, but it could be that the creator of that DVD used these extensions in a clever way to only have the MS-Windows related files show in the Joliet part of the system and only have the Linux specific files show in the Rock Ridge part of the system. The isoninfo program discussed in this stackexchange answer might provide more information,






share|improve this answer





















  • 2





    Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

    – spookylukey
    1 hour ago











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6














I'm not sure this is the correct answer, but maybe it'll provide you with details that will help you.



It could be because MS-Windows and Unix use different file systems on DVD - even on the same DVD. Files on an optical media are usually arranged using a file system protocol specified in the ISO 9660 standard.



But the standard allows for extensions, and Microsoft has designed their own extension to the standard called "Joliet" that allows Microsoft Windows compatible operating systems to read different file names with more features (longer and support Unicode) than the standard ISO 9660 file system allows.



For Unix operating system, another extension called "Rock Ridge" was developed, to allow even longer file names, Unix-style permissions and a few other things.



It is very common to have both Rock Ridge and Joliet extensions on the same optical media, but it could be that the creator of that DVD used these extensions in a clever way to only have the MS-Windows related files show in the Joliet part of the system and only have the Linux specific files show in the Rock Ridge part of the system. The isoninfo program discussed in this stackexchange answer might provide more information,






share|improve this answer





















  • 2





    Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

    – spookylukey
    1 hour ago
















6














I'm not sure this is the correct answer, but maybe it'll provide you with details that will help you.



It could be because MS-Windows and Unix use different file systems on DVD - even on the same DVD. Files on an optical media are usually arranged using a file system protocol specified in the ISO 9660 standard.



But the standard allows for extensions, and Microsoft has designed their own extension to the standard called "Joliet" that allows Microsoft Windows compatible operating systems to read different file names with more features (longer and support Unicode) than the standard ISO 9660 file system allows.



For Unix operating system, another extension called "Rock Ridge" was developed, to allow even longer file names, Unix-style permissions and a few other things.



It is very common to have both Rock Ridge and Joliet extensions on the same optical media, but it could be that the creator of that DVD used these extensions in a clever way to only have the MS-Windows related files show in the Joliet part of the system and only have the Linux specific files show in the Rock Ridge part of the system. The isoninfo program discussed in this stackexchange answer might provide more information,






share|improve this answer





















  • 2





    Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

    – spookylukey
    1 hour ago














6












6








6







I'm not sure this is the correct answer, but maybe it'll provide you with details that will help you.



It could be because MS-Windows and Unix use different file systems on DVD - even on the same DVD. Files on an optical media are usually arranged using a file system protocol specified in the ISO 9660 standard.



But the standard allows for extensions, and Microsoft has designed their own extension to the standard called "Joliet" that allows Microsoft Windows compatible operating systems to read different file names with more features (longer and support Unicode) than the standard ISO 9660 file system allows.



For Unix operating system, another extension called "Rock Ridge" was developed, to allow even longer file names, Unix-style permissions and a few other things.



It is very common to have both Rock Ridge and Joliet extensions on the same optical media, but it could be that the creator of that DVD used these extensions in a clever way to only have the MS-Windows related files show in the Joliet part of the system and only have the Linux specific files show in the Rock Ridge part of the system. The isoninfo program discussed in this stackexchange answer might provide more information,






share|improve this answer















I'm not sure this is the correct answer, but maybe it'll provide you with details that will help you.



It could be because MS-Windows and Unix use different file systems on DVD - even on the same DVD. Files on an optical media are usually arranged using a file system protocol specified in the ISO 9660 standard.



But the standard allows for extensions, and Microsoft has designed their own extension to the standard called "Joliet" that allows Microsoft Windows compatible operating systems to read different file names with more features (longer and support Unicode) than the standard ISO 9660 file system allows.



For Unix operating system, another extension called "Rock Ridge" was developed, to allow even longer file names, Unix-style permissions and a few other things.



It is very common to have both Rock Ridge and Joliet extensions on the same optical media, but it could be that the creator of that DVD used these extensions in a clever way to only have the MS-Windows related files show in the Joliet part of the system and only have the Linux specific files show in the Rock Ridge part of the system. The isoninfo program discussed in this stackexchange answer might provide more information,







share|improve this answer














share|improve this answer



share|improve this answer








edited 1 hour ago

























answered 1 hour ago









GussGuss

1,57811733




1,57811733








  • 2





    Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

    – spookylukey
    1 hour ago














  • 2





    Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

    – spookylukey
    1 hour ago








2




2





Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

– spookylukey
1 hour ago





Thanks, that was enough - isoinfo dev=/dev/dvd -J -ls shows the missing files in Linux.

– spookylukey
1 hour ago










spookylukey is a new contributor. Be nice, and check out our Code of Conduct.










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