SONY MUSIC JAPAN - Glitches?

[ImpactBreaker]

Do they have a problem issuing certain CDs? I don't have an actual single nor album under that label but I noticed that something often happens with cd rips from SONY artists: some cds have a glitch at the end of the last track (I mean the mp3s, it always happen to the last track and after the song finishes). I would like to know if someone owns any of these REAL cds and if they could tell me if the gltch is actually on the CD or if it's just a problem when people try to rip mp3s from the SONY cds. Some of the cds I noticed that are:

-Glisten single (SOWELU)
-Boyfriend -part II- (Crystal Kay)
-Wonder word (SUPERCAR)
-Web of night (TM Revolution)
-Prayer (Nami Tamaki)
-SOUL TREE (featuring various artists)

There are many others I can't really remember right now.

It always happen to the last track and in the end of it. I really find it weird as that only happens to SONY mp3 rips