>>672089Try increasing the size of the readahead buffer in your video player. If you can copy a four-hour video in two hours, that means the device is fast enough on average, meaning you need more buffer.
>will more RAM help?Only if the program is actually using it in the first place. If it's compiled for x86, that will be a no as it can only address 2GB. Check in task manager and see if it's using all your RAM; if it isn't you need to fix this problem first.