You have done a fantastic job here Mike. The results of your package and cart see BETTER than anything than what a commercial software house would have put out. The TI community is damn lucky to have you.
I thought I'd start a thread on the power of cassettes discussing utilities, games, hardware,etc.
I'll start it out with a dsk of utilites by Tonny Brouwer.
The most interesting program on the disk is Tape Streamer. It will copy a ss/sd disk to tape and back again. I tried it a couple of times and it seemed a bit fickle, but did work. I compared the "streamed" disk from tape to the original disk and it was exactly the same. I think this program runs at about 1200 baud as does other software on the dsk. Source files are on the disk as well.