There is some really fantastic music here for only a few quid, but beware: as with many 50+ year old recordings that are now public domain, anyone can knock out a cheap CD with scant regard to sound quality or editorial standards.
Somethin' Else sounds like it's had extra reverb added, and is quite boomy and tizzy. Sharpshooters is bass-light but also tizzy - the top end boosted for 'modern ears'. Them Dirty Blues has been ripped off an old LP and sounds pretty nasty - hum, crackle, distortion all over the place, not to mention a really honky, mid-heavy sound.
If you really want to hear these albums, do yourself a favour and get the proper individual CDs (which were mastered from the original tapes and have great bonus tracks as well), not this low-budget hotchpotch.