I'm using windows xp and ubuntu 6.06 dual boot system. I recently created a data disk using nero with multisession option enabled in windows. Using mkisofs with -C and -M flags I tried to add more files and got the following warning.

Warning: Neither Rock Ridge (-R) nor TRANS.TBL (-T)
name translations were found on previous session.
ISO (8.3) file names have been used instead.

When I burnt the resulting image to the same disk the file names in the previous session were truncated to 8.3 format.

How to preserve the filenames created using nero?

There are two long filename extension systems for cd-rom, Rock Ridge and Joliet. The Rock Ridge extensions are primarily used by *nix-based systems and Joliet is used by Windows. It looks like you don't have Rock Ridge enabled in Nero, so your Linux system can't read the long filenames on the disk.

But Nautilus is able to read the long file names. Only when i use mkisofs to create a new session the filenames in the previous sessions are truncated... Any help?