I'm trying to back up some stuff to an external hard drive. And there are errors in movies that I have ripped (because I either forget to put them back in the case or they get lost) some movies and whenever I try to move the video file (ripped int a AUDI0_TS file and a VIDEO_TS file) I have an error box where the title of the window in the blue bar says "Error Copying File or Folder" and in the window (the gray part) it says "Cannot copy VTS_01_2" Data error (cyclic redundancy check).". And then I click the "OK" button and it stops the transfer. The VTS_01_2 is sometimes replaced with whatever file that cannot be transferred or that is causing the problem. I used DVDShrink and DVD43 to back them up. I am running Windows XP sp3 and transferring them onto a 300 GB hard drive. Can anyone help me please? Thank you.

Trying to pinpoint the reason for this is going to boil down to trial & error. Try to obtain or rip a movie with NO errors and transfer that. IF you don't get any error messages with your test file, then the corruptions on your ripped videos are the reason. If you get the same error message then you know that the glitches on your rips are not the reason.

Next, if you have an extra hard drive, hook it as a slave and try to transfer one of your problem rips to it (that would be HDD to HDD, not through a USB port). No message? Then the problem is your USB port. If still a message, at least you have eliminated the external drive as the problem.

Then you go to checking your memory, making sure you have enough memory (remember that if you run low on RAM your harddrive is going to go crazy with writing to your scratchdisk, and that may create an error message).

Then you go to testing components. And try running CCleaner to remove your temp and other cache files just to make sure you are not bogging down with limited cache space.

Another excellent source to ask in is Videohelp forum. I suggest the Newbie/General section is the best to post in. Be aware that a lot of pros who earn their living in video hang here, so be respectful and they are great guys.

Please let us know what you find so we can learn also!

possibly it's the copy protection that causes the errors.

OK, so I moved the USB cable to another USB port, still the same message. And as much as I hate to admit it, I don't know how to check the RAM or how to hook the external hard drive to slave mode. Please help. Thanks! And I will be sure to repost this in the video help forum. Once again, thank you.

Try this link: SLAVE DRIVE Please note that I did not say to hook your external USB drive as a slave, I said if you had an extra hard drive laying about, use that. If you don't, do not go out and buy one. You don't know for sure that is the problem.

Download the ISO of Memtest86+ (free) and burn to a CD. Set your 1st boot device in the BIOS to CD, and reboot with memtest in the driver. Let it run for at least 1/2 hour, and if you get even one error message that stick of RAM is bad. I don't think that is your problem, but we must cover all the bases.
Link: Memtest