Total Commander

I suggest to offer a possibility to use WCX plugin to copy or move files & folders with WCX plugin if TC encounter an error while reading file. Such errors may happen if file system has errors, or file is locked by some process, or maybe because of other reasons. Currently the best solution TC offers is to skip such files, because in case with e.g. broken file system of optical media TC can totally hang trying to copy it using own or Explorer methods.
Indeed, even the methods TC using to detect that it's impossible to copy a file may have own issues: it seems that TC tries to copy file several times before it shows some file reading error, which is especially visible with copy from broken optical or floppy media. So my additional suggestion is to show reading error with possibility to use WCX plugin for copying immediately after first failed try, with option to auto use the plugin in current task on next "error" files or all files.

Maybe this suggestion can be extended to FTP, so (maybe with some new WCX plugins API) plugins could be used as alternative direct downloaders for some FTP servers where TC has compatibility issues.

You may want to try badcopy WFX plugin.

Regards
Dalai

2Dalai
WFX plugins are good when I intentionally want to do a one copy task from some source that I certainly know is broken. But on daily basis I use TC's built-in copy/move feature and the ability to use plugins like nscopy one (its WCX version) for files that TC can't read, without canceling whole task (it may be a copy or move queue from/to different sources) can save a lot of time, and if implemented in suggested way (when ask to switch to WCX plugin copy/move offered after first TC try to read failed) it may also save the lifetime of source media and PC hardware.

TC could at least offer an option to put the files it can't normally transfer to a "pack queue", so when TC will finish copying files which it can, for problem files a pack dialog would appear, or their packing will start immediately if this option will be chosen in the Skip files dialog, which could look like this:

>>>>>>>>>>( Window Title)<<<<<<<<<<<
Total Commander
>>>>>>>>>>>( Visible Window Text )<<<<<<<<<<<
[Skip] [Abort] [Put to pack queue]
[Skip all] [Retry] [Put all to pack queue]
>>>>>>>>>>>Advanced options:<<<<<<<<<<<
[x] Start pack queue immediately after copy/move
[Set and configure the packer for immediate pack queue start]

And in the "Advanced options" of Copy/Move dialog itself, it would be nice to have an option to set the number of file read attempts before the Skip dialog appears.