Vista - can't find video files on enhanced audio cds..

I'm a new Vista user, and am having a problem finding video files on enhanced
audio cds. If i double-click on the E drive in 'computer' it plays the audio
in WMP; if i 'explore' the disc it shows me the audio files but not the video
files i know for a fact are on the disc. (unfortunately i can't 'search' for
the files as i'm not sure what they are called; i am also not sure what
format the video files are in - is there a format Vista will refuse to even
recognize??).

While i'm here, often when i'm moving files or folders around i am told
that administrator permission is needed to do what i'm trying to do - i click
'ok' and sometimes that's fine, but sometimes it refuses to move the file and
i have to find a way around it (like move the data into a different folder,
or rename it or whatever). While it's not a serious problem as i can usually
get around it, it is irritating as i feel like i should be the administrator
of my own computer!

Any help greatly appreciated.