Pink Floyd LP Box Sets

What are your impressions on the sound quality of 1) The First XI and 2) EMI 97 (7 LPs) box sets? How do they compare to the individual LPs? Thanks.
Niether is top notch for sound quality. First XI contains reissues from UK with picture discs of DSOTM and WYWH.
97 collection is from digital remasters.

the mini lp cd sets sound the best overall.
Thanks for the input.