Ogg-checker?

[Brian Fahrlander]

     I reported a bug, nearly a year and a half ago in Rhythmbox. I was 
getting duplicates of songs played back to back.  It really irritated me 
because no one took any action, even to say they couldn't duplicate it.

     So a couple of days ago I noticed something peculiar: RB wasn't 
playing dupes...in fact it was reporting a different song playing, as 
the LAST song was playing.  And certain songs, prone to duplication, 
play all the way through, then silence, then 1/2 second of their 
beginning again.

     The songs in question are all oggs, all ripped with SoundJuicer or 
GRIP before that; nothing experimental, nothing 'tarball' about it.  So 
it occurred to me: is there something improperly ripped about these 
files, that would cause this strange behaviour?

     [Under Dapper] how would I know?  Anyone know of a program to check 
validity of such files?