ImageDisk and some 8" images posted

At 21:13 02/08/2005 -0500, you wrote: Sorry, I don't have any DEC 8" material to try. The only DEC disks I have are VT-180 and Rainbow (RX50) - both of which backup and restore with no problems - but they are 5.25" format - almost but not quite completely unlike what you are asking about. I've done most of the 8" system masters that I have here, and so far I have not encountered an 8" disk that I can't read or recreate - this includes a number of mixed FM/MFM disks. I'm using a QUME QUMETRAK 242 attached with the adapter cable described in my help screens. As long as the format can be read and written by the PC controller (which does have some limitations), it should (may) work - please let me know. One weakness - the program currently cannot handle disks which have different sector sizes within the same track ... so far I have encountered only one disk type which *MAY* do this, BMC if800 - TeleDisk reports that the sector size changes within the track ... however I have never been able to get TeleDisk to restore a workable disk, so I am not convinced that it handles it either - it also reports sectors missing and "no data" in sectors, as well as really odd sector numbers - I have a feeling that it is an incompatible format and it is getting "garbage". Still, it's an option I could provide if there proves to be a need. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html