Total Commander

Great software !! Benn using it for nearly 29 years.

Giveway trial version - well done!

More information about the RAID5 controller copy problem
When copying files in the "big file copy mode", there are reproduceable byte errors when using the controller Adaptec 2400A with a 4 Disk RAID5 Array. We cannot say if other controllers are affected, we didn't have any other reports so far.

The incompatibility will be detected very quickly, because all files copied in that mode will have some damaged bytes. This mode is not active by default, it needs to be activated by hand. "Normal" IDE- and SCSI-Controllers don't cause any problems. With a small change in the creation of the buffer, the copying now works correctly.

The incompatibility has been corrected in Total Commander 6.03. An update is strongly recommended if you want to use the big file copy mode.

For those who are interested in the technical reasons:

To our knowledge, the error isn't in Total Commander, but in the driver of the Adaptec controller. according to the documentation of the Windows copy functions, the copy buffer _should_ be aligned to a sector boundary, but this wouldn't be enforced in every case.

See: The documentation for CreateFile under FILE_FLAG_NO_BUFFERING:

"Buffer addresses for read and write operations _should_ be sector aligned (aligned on addresses in memory that are integer multiples of the volume's sector size). Depending on the disk, this requirement may not be enforced."

This formulation doesn't let expect write errors when copying - Total Commander passes all data correctly to the copy function. It also works fine with all other controllers.

We assumed that the large buffers created with Delphi would always be aligned to memory pages, because it worked with all controllers. Unfortunately buffers created with Delphi always seem to be displaced by 4 bytes, because Delphi seems to store the buffer size in the first 4 bytes.

I face no copy Errors since version 4.x

Really excellent, I use it all the time, worth far more than even the non-free version costs. Does more or less everything — file managing, zipping and unzipping with various types of compressors, your own comments alternating with size of file, a reader which also shows graphics in graphics files, text editor, size of drive and free bytes available, file comparison, lots of format and other configuration options, optional dark mode, a forum for discussion, excellent service (very rarely needed), all sorts of things, many of them too advanced for me to even understand but they work. Very, very highly recommended.

Could someone explain what "Byte errors in the 'Big file copy' mode" means?

If this program doesn't correctly copy files then what is it useful for?

Best file manager ever. I have been using this program ever since Norton Commander for DOS stopped development. Total Commander is a share ware but their business practice is superb. If you don't register, you have to enter a code number which is provided by the program itself to proceed.
I just wish Christian, the boss would come up with an Android version which mimics the PC version. They do have one, but frankly it is crap. It does have two panes and the icon is same, but the comparison ends there.

Have used this daily for decades.

Have recommended it to every one I've taught or tutored interested in computer literacy

Best file manager for PC!