the error message sounds like you do not have enough free space to encode the video. try using the virtualdub method that i posted earlier, that might help
EDIT: i've searched all day yesterday trying to find any reference to taht error message that you posted and I could find none. which program were you using when you got the error message? what operating system are you using? what are your system specs?
any info you can provide me with might help me in finding a solution for you