MD5 works fine, I was just using some SHA1 earlier to see if some iOS MobileSync backups had changed (something to do with loosing two iPod Touches) so I got them switched up.
Annnnyway if you ran an MD5 on your end of the SD card content and compared it with the MD5 I supplied in the MD5 dump text file that'd work. Here's how I did it: http://hints.macworld.com/article.php?story=20051118190655891
Just dump the content into Terminal, change the window transparency, and any changes are real obvious.
Sheep: didn't see anything max uploaded in there, maybe I passed over it. Oh well...just so happens that I was actually looking for pre .97 versions of Mac OS ... BetaArchive also has a ton of Mac OS betas. I have a nice easy rtf I made of the content they have there for quick searching. Somewhere there I may have seen an upload of 7.7a2c5...the last version of Mac OS 7...
Edit: Replaced 'xxx 7' with 'Mac OS 7' - IIGS User