Hello, I got myself a new external hard drive a few days ago. I first connected it with USB, went into the DISK Utility tool, there selected the "931.5 GB HD" and there selected Mac OS Extended (Journaled) Volume Format, gave it a name and clicked on Erase. That all seemed to work fine. I could write data on the disk and read it directely from the disk. Then I disconnected it via USB and connected it via an eSATA card for my MBP, and that also worked perfectly fine for the next two days, I could read and write data without a problem. However, this morning it stopped working all of a sudden. When I start the HD, I get the error message "This disk could not be read". At first it seemed to work after clicking ignore and a long time of waiting, but it tooks ages for things on the disk to load and eventually it crashed when I tried to copy stuff on it. So what can I do now? Did I do something wrong when formatting the disk? Was I supposed to use Partition instead of Erase or something? And why did it work yesterday but doesn't work today anymore?! Thanks in advance!