Author: Ira

January 31, 2024 – New Manuals

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More manuals, Brick Parrish


Title: MVB-3 80 x 24 Video Board Installation and User Guide
Publisher: Memory Merchant
Year: 1983
Size: 154,889,241
Pages: 60

Title: ShuffleBoard III Users Manual v1.0 and Addendums
Publisher: Memory Merchant
Year: 1981
Size: 1,218,545,583
Pages: 110

Title: M3CBI Model Model III Communications Board Manual
Publisher: Computex
Year: 1982
Size: 133,853,141
Pages: 50

Title: Trendex Stock Market Trend Analysis
Publisher: Tandy
Year: 19xx
Size: 145,908,901
Pages: 51
Notes: [26-1509]

Title: Trilogy Drive Controller Kit for Model III User Manual
Publisher: World Wide Data Systems Inc
Year: 1983
Size: 254,676,097
Pages: 42

January 28, 2024 – New Manuals

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Bill Allen has sent over a bunch of manuals for me to scan. The first set is below. Thank you, Bill!

Title: UltraDOS and SuperBASIC Reference Manual
Publisher: Vernon B Hester-Level IV Products
Year: 1980
Size: 205,822,671
Pages: 89
Notes: [2nd Printing]
Title: LDOS v5.1.x 1st Ed
Publisher: Logical Systems Inc
Year: 1982
Size: 751,777,287
Pages: 292
Notes: [Combined Model I and III]

January 23, 2024 – TRSTools / TRSRead

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I have stumbled upon another disk format which TRSTools does not properly handle. I have tried to go through my old emails to find all the old reports, but many of them just sent disk images of which I no longer have records.

So … to those who use TRSTools and TRSREAD, please tread carefully on the following DOS image types:

  • MultiDOS double sided disks. TRSTools/TRSREAD will sometimes insert the side 2 data in the middle of side 1 files. I confirmed this by batch reading each disk double sided and then again as single sided, extracting the files, and comparing them. VDISK (by Miguel Dutra) extraction resulted in 100% identical crc’s between those sets. TRSREAD had multiple differences, where the Double Sided disk read was corrupt.
  • TRSDOS v2.3b disks.
  • DosPlus 3.4A for the Model III.
  • NEWDOS/80 images with damage on Track 1.
  • TRSDOS v2.77D, particularly deleting files, as they may corrupt the image.
  • TRSDOS 1.3 disks with extra data in a reserved area of the directory.

Right now, I have a slew of MultiDOS double sided disks (and CP/M double sided disks) where side 2 is inaccessible. The CP/M disks are entirely unusable; and that may be because they were made on a Model III with a Shuffleboard or because no tool exists to identify the geometry needed to mount them. The MultiDOS disks read (on a catweasel) as double-sided disks, but only Side 1 shows up in an emulator, and side 2 cannot be separately read as its own image.