I just recently started getting heavy into Led Zeppelin again. I own all their 80s cds from back when I first started to dig them. Recently I imported those to my iTunes, but decided I wanted to me more updated on their releases. I stumbled on 3 used 90s remasters, Zep I, II and HOTH. Then I decided to purchase form iTunes, the recent reissues (single set, not deluxe) remasters, in 256 kbps for 9.99 per album. Now, today I'm strolling through Wal Mart and decide to just check out the Zep cd section for kicks. I found all the single set hard copy 2014/15 reissues for only 9.00 (Not including the yet to be released hard copies of Presence and ITTOD). For some reason, I was under the impression that only the deluxe sets were available in hard copies. They didn't have a non deluxe set of PG so it was 18.99. Anyway, I bought them because the price was too hard to pass up at only 9 bucks for all the new reissues on hard copy cd (Except for PG, which was 18.99, but I bought it too) So now the question. I haven't opened them yet and I have my receipt. So, seeing as I have all the 80s cds, 3 of the 90s cds and all new reissues purchased from iTunes, including Presence, ITTOD and CODA. Is there any reason to keep these hard copies of the new reissues from Wal Mart, for sound purposes? Sure it's kinda nice having the new covers for the price, but is that enough for me not to return them? The PG is the 40 year anniversary one so it's kinda cool. I don't have a high tech stereo system, just a run of the mill decent living room cd player stereo and of course my iPod. Are there certain ones that are better in the new issues than before, and others that aren't, or certain ones better than the iTunes ones compared to others?