Thank you so much! I had a WD mybookworld die on me -- RAID is pretty useless when the main board craps out :) Under Windows 7, I was able to recover everything over to my new NAS. Please send me a message -- I want to make a donation to you.
On Windows 7 64 bit with 1 SSD, 2 SATA drives and USB3 it quietly worked incorrectly. I connected 2 2TB drives (both formatted as Ext3, one empty) using USB3 enclosures, then copied the entire contents of one drive to the other. The "from" drive had 893GB free and the "to" drive started out with 1810GB free. After the copy completed the "to" drive had 1810GB free but less than half the directories existed. I've no idea where the data went to. Sorry but as far as I'm concerned this software is worthless. I'm not prepared to waste more time on it by providing debug info. I achieved my copy by booting up a SystemRescueCd containing Linux and copying the data using that.
This comment refers to v. 0.68 (July 2016, as of August 2017 there's a new version 0.69 but I didn't try it, I just removed 0.68 from my windows after experiencing the problem I describe) , and there is no mention of 0.69 on the project website ext2fsd dot com) *DO NOT USE THIS* if you have a recent linux distro. e.g.: Ubuntu >= 16.04 Debian >= 9.0 It will corrupt the linux partition superblock, so you'll need to fix it (e2fsck) to be able to boot it again. The reason is explained on the Askubuntu site, look for this (URLs are prohibited...): how-can-i-prevent-windows-10-from-corrupting-the-ext4-superblock-every-time