Yes, I've been using the stand-alone command prompt version-- opening a command prompt on a folder and typing comiclrf *.cb*. I don't see that a shell could be easier than that.
edit to add:
Just tried the Calibre solution-- it did use all my cores. At the expense of several more steps to have to go through than a short command line, plus the Calibre version failed to convert half of the 8 files I picked for a test while the command line version had no problem with any of them. I'd much rather live with using only 2 cores than bother with the shell.
Last edited by ardeegee; 09-20-2009 at 04:48 PM.