Flickr says 1024 x 768, but in fact you can upload 1024 x 1024. The largest side is 1024 pixels, unless you pay Flickr your hard earned cash for higher resolution photo hosting. I personally do this for fun and as a hobby, and somewhat to benefit the classic Mac community as a whole. But I cannot afford to pay a monthly fee for higher resolution photos. That is why I mentioned Googles service in my post above, because they allow up to 1600 pixels (up from 1024 on Flickr) for FREE. But again, the communities and groups on Flickr are better than Picasa because Flickr has just become more popular over time. Ironically, I like searching on Flickr better than Google! You wouldn't expect that! But Google doesn't allow users to pick any search tags they want like Flickr. I go crazy with tags on my Flickr photos because I want any classic Mac enthusiast to be able to find my photos on a simple Flickr search.

I'm not an expert on hard drive interfaces, so you will have to explain MFM for me. I can only say it is not SCSI or IDE or any modern drive implementation. There are two ribbon cables (not shown in my photos) that attached the back of the drive (the side shown in the photo I took from the analog side of the Mac) and connect to the Hyperdrive controller card, which in turn connects to the 68000 on the Mac's logic board.

You can see from a couple of my photos the black plastic faceplate on the drive (with the LED). As I recall from years past, this was a common faceplate for hard disks in IBM PC's, so I guess that is what GCC used for their drive mechanism.