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ADT Pro bad bits

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#1 Macintoshguy1984

  • 6502

Posted 17 August 2017 - 02:35 AM

whenever i try to transfer a image to a disk with my iic, it writes "bad bits" and then after a second it will timeout to the adt pro menu. Any suggestions?

Edited by Macintoshguy1984, 17 August 2017 - 02:36 AM.

#2 Juror22

  • 6502
  • LocationCentral Illinois

Posted 17 August 2017 - 05:05 AM

So, are you getting the 'x''s (errors) as it writes a newly formatted disk after a good transfer?  I had a batch of disks (new old stock unformatted and old Verbatim PC ones) that were all bad - they formatted fine, but attempting to write images to them produced errors (the errors in writing were still there, when I used my ][+ and different disk images and cleaned the drives, so it was the disks).  Going to a different batch of disks (Kodak DS/DD and Memorex this time, instead of my cheap, Chinese, bulk DS/DD and the Verbatims) gave me good disks - everytime.


I just did this over the last weekend, breaking out the IIc, after getting my ][+ working.

I'm going from a MacBookPro to the IIc (ROM 0, internal drive) making a set of original disks from .dsk images, using ADTPro.

I start the IIc, using speediboot (to guarantee connectivity and free up the disk drive).

The macs are winning...

#3 ArmorAlley

  • 6502
  • LocationSwitzerland

Posted 17 August 2017 - 05:38 AM

Can it be that the disks are simply too old now? The plastc may very well have warped.

Macs in active-ish use: IIcx | IIfx | Performa 475 | B&W G4

Macs available for use: SE; SE/30; LCIII; Q950; PM7100; PM7300; PM8100; 2x once-working Wallstreets; once-working Pismo; spare B&W G3;

#4 Macintoshguy1984

  • 6502

Posted 18 August 2017 - 12:08 AM

ive tried a lot of disk but allog them still have the "x"'s

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