We have 3 computers, 2 HPs and 1 Compaq. All have WindowsXP and all are P4 with about the same amout of RAM memory. The flash is a 16gb USB and worked fine for several weeks. Now it will only work on the Compaq. I reformatted it to FAT 32 and still only works on the Compaq. Thanks for any replies and suggestions.

I reformatted the My Book - which went smoothly. The copied a short video. Again - worked well. Now I'm copying a whole bunch of videos - and it's taking time. I'm copying about 10-15 hours of standard definition tv shows. So far, it's been over an hour. I have no idea how long it will take via USB2 connection. The 30 minute video took less than 5 minutes. I have follow-up questions. I wonder what the best way is to back up these files. I just opened up My Documents and right-clicked one at a time - then chose the option to "send to" and selected drive e: my book. I'm sure there's a better way to do this, but I don't know what it is. I tried to highlight more than one file at a time (using the shift key) - but it didn't seem to want to let me highlight more than one at a time. I also wonder if I send a file to MY Book - does that mean it's moved to My Book and the original isn't on my PC - or is it copied there? Raven - I know I should know this by now, but I don't. How do I find my firefox profiles and bookmarks files so I can copy them to the external drive? Lastly, is there a way to copy files to the external drive in such a way that I can get prompted if the file already exists? so I don't make a copy and have 2 copies in there? with many files (like pictures), I may get a prompt that says the file already exists - should I overwrite it or skip. Is there anything like that when copying files to the external drive? At some point, should I bite the bullet and buy a software program to do this. Western Digital tries to give trial periods for the following software : Memeo Autobackup, Memeo Autosync. Any reason to get these? Or any other software? Also, when I reformatted the drive, it wiped the drive clean. Is there anything (drivers, software?) I would need to download from Western Digital (to replace anything I might have erased). I know that the proprietary software that's sometimes loaded with these things (like cameras, printers) may not be necessary at all. Thanks. Lynn.

Luis it would appear that your hard drive is formatted in Fat32. As your error message notes, it can only create a backup up to 4 gigs making it useless for you. To check your computer click Start, click My computer the RIGHT click on the C:\ drive and click Properties at the bottom of the new window. Now look near the top and you will see whether your drive is Fat32 or the more Efficient NTFS. If your internal hard drive is either Maxtor or Seagate you can download free back up software from their site. This is a modified version of Acronis True Image and is a large file.

I dunno, never used it.... Note If you find fat32format a bit fiddly to use or these instructions a bit hard to follow you should try the replacement for fat32format. It is a Windows application with a GUI. Try it here Here is a link that might be useful: Ridgecrop fat32 format