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TI99 format disk program... help...

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Yes, that is what I thought, and I can't use more than 40 tracks. I don't think this drive in the PEB has a read/write head on both sides either. Are there mod kits/instructions for upgrading this drive controller module for DD? I've seen pictures of units with half-height 5.25" and 3.5" drives mounted where this one SSSD is. I won't be doing this mod in the near future, but I have no doubt I will get to it eventually.


Thank you,




no. the controller is only capable of SD.. The only mod available is to make it support 80 track drives. And that is a rom swap (requiring de-soldering of factory ROMS, and replacement with sockets and new ROMS)

this is available from hummingbird eproms



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