Some of us here are pretty fanatical collectors. That being said, you're best to compose a list of what you have and then cross check it, as Charlie suggested, with the database (db.etree.org). A lot of those Maxell XLII's you have analog copies from, are copies from DAT tapes (digital tapes) that have since been converted to other digital mediums which most of us are listening to already, except without your analog generations (=tape hiss). During my touring years, especially in the early 90's, I pretty much only had analog tapes. Then digital trading with DAT tapes became quite popular, and thus we all could have as great a sounding tape as he/she who had taped it and was first in the generation chain. Unfortunately DAT tapes and players were pretty expensive. BUT THEN came bittorrent and hard drives, and well everything was turned upside down. We now pretty much have the entire Phish audience catalog at our fingertips, of which 75% or more are of A+, as good as soundboard if not better, quality (also dependent on your playback system).
Concerning these torrent sites, there are many that host torrents for download including many other bands. This is where we "seed" new digital tapes to the masses, as well as run year projects (94, 95, 96 etc...) to help others collect or fill holes in their collections. In the database, on each show's page, there are actually links to many of these seeds, especially those hosted at bt.etree.org . If you pm me, I can offer you a tutorial to bittorrent if would like. Unfortunately, I'm a pc guy and not a Mac dude. All I can say is, since the first bittorrent tutorial someone gave me 10 years ago or so, I have gone on to collect nearly forty thousand concerts of pristine quality. Something that I could only dream about ten years ago. Amazing world we live in.