TRSTools is a Windows Explorer-like utility that makes it easier to work with virtual disk images.

For beginners and intermediate users, this is the only utility you will need on this entire page as it has all the functions of almost every program here. For advanced users, you might also want Diskmanip and DMK File Viewer/Editor v1.01.

TRSREAD and TRSWRITE are command line utilities which allow for the import and export of files to/from DSK and DMK images.

TRSREAD usage is TRSREAD [options] virtual disk [files] where the [options] are

Intended to allow one to perform a series of operations (read, write, rename, delete etc.) on files stored in a TRS-80 virtual disk image.

This is a small utility which allows you to access virtual TRS-80 DSK/DMK images at a file level, as if they were normal PC disks. A virtual TRS-80 disk is actually a PC file encoded with information extracted from a real TRS-80 floppy, in order to preserve its content and also to enable its use with TRS-80 emulators.

The TRS-80 Virtual Disk Manager shows the file name, size, date and attributes of each directory item, supports reading both .DSK and .DMK image files, and allows exporting TRS-80 files to the Windows file system.

Only read support is implemented.

VREAD and VWRITE were the first DSK import/export utilities, packaged by Jeff Vavasour with his Model I emulator. These utilities cannot process only single density DSK files.

This program reads DSK files, and displays the disk filenames in a list box. Clicking on a file, allows the file to be saved to a PC folder. It can be used just to view the Files on a DSK/DMK, if you dont want to copy the files.

It doesn’t always work, but it has definitely helped me extract files from DSK images which the emulator would not recognize.

Transfer utility for David Keil’s emulator between the emulator and DOS

HxC makes a line of hardware floppy drive emulators that are quite popular. Included in their support downloads is HxCFloppyEmulator, which includes functions to load, convert (including batch processing), browse, and modify disk images. Features include:

• Loading a raw disk image, specifying the bitrate, rps, number of tracks, sector id start, interleave, etc.
• Batch converting disk images, specifying the target file format.
• Disk Browser (not for TRS-80 disks)
• Export into many file formats, including those for the TRS-80: HFE, IMG, JV3, DMK
• Track Analyzer which shows a graphic representation of the disk, along with information.

As a side note, the Track Analyzer has a feature which allows you to “swap sides” and erase sides. This was especially useful for disks which were written using certain software which mounted a double sided drive as two different drive numbers. It took a lot of people a lot of time to try to figure out what was going on with those disks, and once it was determined what was happening, it was this software that allowed extraction of the second side as its own DMK image!

Also, older versions of this utility had a bug which prevented the program from accurately creating DMK images. The author advised that this has been corrected. If you do run into trouble, please reach out with the images so that further development can be made.

This is a utility that converts from TD0 (Teledisk) or IMD (ImageDisk) to DMK Format. Features include:

• Convert TD0, IMD, D88, and DMK Images to DMK and D88
• Identify virtual disk errors (Note: Exports CRC and BadID sectors as read, doesn’t attempt to ‘fix’ nor ‘repair’ them)
• DMK Repair (automatically merge good tracks/sectors from two different DMK images into one fixed image)
• Import real Double Density (NO SD) disks into DMK and D88 formats using the built in floppy disk controller (install fdinstall beforehand)
• Display directory of Model II disks (TRSDOS 1.2 and 2.0, LS-DOS 6.3.1 and DOSPLUS II A.00)

While this is a complete ImageDisk package, it includes utilities which will convert from BIN (Binary), DMK (TRS-80 Standard), and TD0 (TeleDisk) to IMG.

Will convert between DSK and DMK formats under Windows (current release within the CW2DMK package cannot run in x64 Windows).

Display the sectors of a DMK image in both hex and ASCII.

A small DMK file editor/viewer which is also able to compare two different DMK files. Works on tracks and sectors only and does not deal with file name or directories. Handles mixed density disks and displays both single-density and double-density sectors, even if they have the same sector numbers.

Displays the CRC for each sector and indicates whether the CRC is bad or not. If you edit a sector the CRC is automatically updated (and corrected). Of course you have to know what you are doing when modifying disk sectors, especially when they contain program files. Can edit using either hexadecimal or ASCII input.

Will display the contents of a CP/M DSK image.

Linux USAGE: ./dskdir MMCPM231.DSK

Will scan a DMK image and report back any sectors which are bad. A “bad sector” is one that its stored data CRC doesn’t match its computed data CRC.

Will display the PDRIVE settings of any DSK or DMK image which was “formatted” by NEWDOS/80.

NOTE: TRSTools will also do this.

This utility analyzes DSK and DMK files and shows filename, DOS, PDRIVES, Tracks, Density, Sides, Sec/Cyl and SPG. Will also note where Track Sectors start at 1.