I just acquired and fixed two Altairs (one 8800z and one 8800b) and have MITS 4K and 8K BASIC on tape. Problem is, I can't find any bootstrap loader for these programs. I have the simple cassette read program in the Altair manual, but that just gives me raw bytes. I suppose I could reverse engineer the tape format (I can read the tape fine) and write my own cassette boot loader, but I wondered if anyone out there could possibly lend a hand? Thanks, -- Dave Norris