I assume you're referring to the albums with catalog numbers DSL, MSL, and IMP4822
—those three albums, right?
I have the CDs, but unfortunately, in my opinion, MSL and DSL are just trash.
The sound quality is terrible—probably around 64 kbps—and they’re in mono. Plus, many of the tracks are incomplete, with some lasting only a minute or just a few dozen seconds.
Plus, the full versions of these tracks were later re-released by C Music.
So these two sets are completely pointless—in my eyes, they’re just trash.
The IMP4822 set is the exception, though. Those are standard CD-quality WAV
Plus, all the tracks are original compositions, and none of them were later re-released by C Music,
But I think they don't sound as good as the music on C Music