China DOS Union

I think, there are several types.
hd-copy simg diskimage dosimg eim
Let's first talk about the classic hd-copy!
hd-copy doesn't need me to explain what it is. It's too classic. The full name should be high-density-disk-copy (high-density disk copier). Because 3.5-inch disks are called high-density disks.
The usage is very simple. The interface is also simple, supporting mouse and keyboard operations.
Type the file name under DOS (generally, we have changed its file name to hd.exe), and press Enter.
If there are no errors, a simple graphical interface will appear:

hd main screen:
********************************* **********************************
* * * Menu area *
* Source disk information area * * Read read disk *
* * * Write write disk *
********************************* * Verify destination Verify destination disk *
********************************* * Verify source Verify source disk *
* * * Format destination Format destination disk*
* Memory information area * * Put to file Write to file *
* * * Get from file Read from file *
********************************* * special menu Special menu *
********************************* * About Version description *
* * * Escape(exit) Exit *
* Destination disk information area * * *
* * **********************************
********************************* **********************************
********************************* * Message area *
* Sector analysis area * * *
********************************* **********************************
Copy function:
1. Insert the disk to be copied into the floppy drive, press the R key, or move the cursor to the Read line and press Enter to read the disk.
2. After reading the disk, insert the destination disk, press the W key, or move the cursor to the Write line and press Enter to write the disk.
Formatting function:
1. Insert the disk to be formatted into the floppy drive, press the F key, or move the cursor to the Format line and press Enter
The formatting menu will appear, select a format, press Enter, and start formatting the destination disk.
Read and write file function:
1. Put to file is to write the entire read disk into a file with the IMG extension.
2. get from file is to read the IMG file into the memory area, and then use the WRITE function to write it to the destination disk.
Exit function:
1. Press the Esc key, or type the E key, or move the cursor to the Escape line and press Enter
If it asks you (yes/no) during use, just type Y or N.

This is the image formed after I used the Get from file function to read an IMG file into the memory area, then used the WRITE function to write it to the destination disk, and then read the target disk.
＝＝＝＝＝＝＝＝＝＝＝＝
Using hdcopy to format a floppy disk or copy a floppy disk is very fast. It is also very useful for making IMG image files and releasing IMG image files to floppy disks.
In addition, there are some special uses:
1. Clean the magnetic head. There is an item in the special menu to clean the magnetic head, and the effect is not bad.
2. Salvage data in damaged floppy disks. Because the way hdcopy reads data is relatively special, the error correction ability is strong, and the data that cannot be read will be automatically filled. It can salvage data to the maximum extent. I suspect that the subsequent badcopy was inspired by his hdcopy.
3. Format the floppy disk to bring back to life a floppy disk with a damaged zero track. Sometimes it works.
4. There is a sub-menu to view the directory in the special menu. Sometimes when you run hdcopy, you want to see the content of the inserted floppy disk. This menu can help, (because DOS is generally a single-task operating system, you don't want to exit hdcopy and then use dir to view the content of the floppy disk.) In this way, you don't need to exit hdcopy to confirm whether the floppy disk you put in is the one you want to put in.

This is the picture when viewing the memory usage status (memory statisticc) in the special menu. It can be seen that our HDCopy uses XMS!

This is the picture of the function of cleaning the magnetic head (use clearing disk) in the special menu.

Disadvantages: There must be a real floppy drive, at least one is required. Its operations are all aimed at real floppy drives. If you don't have a floppy drive, then this software is basically useless. Just like me. I don't use hdcopy.

What if there is no floppy drive? Then the following software will come on stage! The next one is eim (easy image???), stay tuned.

I'm currently using WIN98, but when expanding IMG or doing DISK COPY or FORMAT, I use -- HDCOPY!

I used to use HDCOPY all the time because... it has powerful functions, a friendly interface, and is fast. However, since my current machine doesn't have a floppy drive, I basically only use HDCOPY in virtual machines now. Next time I will introduce another good virtual floppy drive software to you.

How did you insert your picture?

9494, I also want to upload pictures. It said it's available. How to use it?

Ah, I'm a "moderator" (a moderator without a specific board), maybe with a relatively high level, and I can use some advanced functions. I'm not sure exactly, but anyway, I can upload pictures.

Actually, to extract disk image files like img, it's best to use Undisk. You don't even need a floppy drive; you can directly extract it on the hard drive. I have the latest version of Undisk 1.95 pro.

Where can I download undisk 1.95 pro?

Top! Just right for us beginners!