Pkponder - thank you for asking your son-in-law on my behalf. It may come to that. Glad to know the Windows version of my main desktop doesn't matter in terms of the NAS. I am going to use a Tivo to retrieve digital data for playing on the television. At this point, I think Tivo's can play Tivo format (which is how I record and store my video) and mpegs. I believe the Tivo is DNLA compliant device. I barely know what that is, but I think it means it can transfer different file formats. I know that I can view my digital pictures, videos and music on my television by retrieving them with my Tivo. I can also play the videos on my laptop. I have Tivo desktop software plus which can transcode any of the tivo videos to a format that can played on Ipads and ipods. Of course, I would have to change the format first. Maybe an NAS can do some of that on the fly - I have no idea. I don't think on the fly video transfer to Ipad and Ipod is that important. If my daughter is home, she has plenty of alternatives for viewing video. And if she wants to load her apple devices for travel, then we have time to get them to the right format. I think the Synology comes with it's own network operating system (which I think is some type of linux distribution). My question on the Raid will be what type. I'll have to learn the difference between Raid 0,1,5 and whatever else there is, so I can choose the appropriate type for me. Thanks. Lynn.

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.

This message usually means there are problems with some files or the descriptor in the file allocation table (FAT) does not match the file size and/or location. For example, a file may be missing its end-of-file marker because the computer was improperly shut down as in a power failure or switched off before the Operating System (OS) finished cleaning up the system. When this message appears agin, allow the OS to scan your hard drives. When the scan utility comes up, deselect the complete surface scan to check only the health of the existing files. A surface scan takes a long time as it is checking the entire disk for bad sectors. Tip: A surface scan should be done on any newly installed hard drive before anything is written to it so that bad sectors can be found and marked off. This will head off future mystery problems. One might expect that this was already performed on new drives, yet I found bad sectors on a new, external 80 Gb drive. I did not find this until I had used the drive for awhile and then I noticed that not all files were showing up in the directory listing, and the drive would stop during a copy of a large file set.

As it happens, things have changed. The technician Dell sent came with the replacement hard drive (with pre-installed XP and drivers). He installed it - booted - and the same hard drive warning occurred. Turns out it was my second internal hard drive (that I use for data) that was going bad. It was a good thing I already had the 2TB replacement. So he put the 2TB drive in - returned my original hard drive - and all functioned well - no hard drive error messages. Now I do have work ahead of me - but this changes the nature of it. Much better scenario - but still requires thinking through. There are probably just a few video files on the second internal hard drive that I don't have copies of. I think they're still accessible - so I will either get a docking station - or better yet an enclosure (since I will need one anyway - as I'll describe later) to put it in - and see if I can transfer those video files to my new 2TB internal drive. I think it makes sense to test that drive to see what's wrong with it - if it's repairable by Windows XP (I think if I run chkdsk there are possibilities to repair some damage?). Should I do this? Or are there other methods to safely test out the health of my hard drive? It is also a Western Digital. The timing of the hard drive failure is now making more sense. I had spent the previous weekend backing up lots of data files onto this second internal 1.5 TB hard drive. I think some of those transferred Tivo files might be problematic. (I say that for 2 reasons - when I've tried to defrag the hard drive, I recall a few files that couldn't be defragged - and while it was hard to see the path, I think they were the Tivo videos. Also, there were a few Tivo videos that failed to work properly when I tried to run VideoRedo to remove commercials. Some just seemed to be bad files - of course, I don't recall which those ones were - but it makes me wonder if it's the sources of the problem on that second hard drive.) Next step is call Dell - I bought that second hard drive from them 1 1/2 yrs ago. It has a 3 yr warranty. I'm not sure if the warranty will be honored by Dell or Western Digital (the brand of drive). So I figure I'll be getting a replacement 1.5 TB hard drive - which I can either install internally - use it as program drive or data drive. I can use the original 500GB drive externally. Or maybe I should keep it the way it is now. Original 500GB internal hard drive, second 2 TB internal hard drive - and put the replacement 1.5 TB hard drive in an enclosure and use for back-ups. One reason I'd like to use the 2TB drive as a program/boot drive (or master drive - I'm not sure of the language) is bc. it's supposed to be a faster drive - Western Digital Black Caviar 2TB drive - 7200rpm and 64MB Cache that was a bit pricier, but I thought it was worth it for quality and speed. It's this one: http://www.amazon.co...ref=oss_product (although I paid less than the price listed online) I'm new enough at all this that I don't understand everything about hard drive speed. I think that a larger drive can potentially slow things down a bit as it has to work to see date over a larger area/amount of data - but that the 7200rpm and 64MB cache will offer more speed - and the reviews suggest this thing is fast. I'd love any guidance in weighing these factors as I decide which to make the primary drive. I also want to clarify what to do with this drive. I don't know how to partition. And if I did, how large a partition should I create on this 2TB drive - if it were to hold the operating systems and programs? I don't know how much room that takes - and how to be sure to take the appropriate sections of my original drive to place into this partition. I can figure out what size each portion of my original hard drive is? I just don't know which folders go into the partition for programs/software? I don't want to leave any out - and I'm concerned I will miss some folders bc. I do not recognize what they are. If I partition the drive, I gather I don't clone it - but do it in sections. I also don't know if I should format it first. Or partition first. Disk management is fairly new to me although I did format a couple of drives. I didn't get into partitions and copying from one drive to another. Does it make sense to use this 2TB drive (which I bought for it's speed and good functioning) as the main drive? If so, I don't know the order of operations? Clone my original drive to this drive? Format and partition first (in which case I'll need to know how to get the proper system files vs. data files into the right partitions). I think I know that if I make this 2TB the master, I have to either switch the cables - but since I think they won't stretch to the second hard drive bay, I'll probably have to swap them. I am so relieved not to have lost my original drive. Although it consumed the better part of last weekend, I did learn plenty - and feel more confident cutting my "recovery" teeth on recovering data from the bad second drive which only has some video at stake. Just as a reminder my original drive has about 350GB data. Thanks everyone. Lynn. PS - I did learn a couple of important things from this technician. First, he updated the bios in my computer (which was several versions old). And he told me where to go to update the bios on my daughter's computer. That was useful. It's a question I've had for a while when I see people on this forum ask whether someone has updated their bios.