Hate to tell you but all Closer than Close CDs have problems.
I.e. some very special feature around 16kHz. It seems that almost all earlier uploads were lossy (I got my first one in flack from rocksoff tracker long time ago but it was, in fact, lossy). Rattlesnake has cut-off in spectrum @ 16 kHz - definitively mp3 sourced.
The one recently uploaded @ hungarcity [www.hungercity.org
] return cdda quality, but still has funny feature. Check the remark of movchun in comments there.
I wonder if SM just "remaster" and mechanically add HF to the spectrum or did something else...