I have this problem with SAMP help me plz.

[Hitman]

Hitman, isn't it also the amount of frames he chose for recording? I mean, if he decides to record 24 fps, he only experiences 24 fps while recording aswell? That's at least what I have experienced.

Indeed, but look, normal "consumer" HDDs can handle around ~70MB/s of data (peak, usually between 50-70).  Special workstation HDDs or RAID-0 etc more, ofcourse, but speaking of normal user HDDs, the limit is around 50-70MB/s.

Now lets look:

With an recording resolution of 800x600, it would already be:  800*600 * 3 (colour bit depth) * 24 (fps) = 34,5 MB/s already. Seems cool, might slow down the game a bit but still is handable.

But now lets look a 720p HD movie -  1280x720 * 3 (colour bit depth) * 30 (fps) = ~83MB/s  - that would already be too much to handle for a normall HDD, and thats why its starting to lag like fuck.

(well the FRAPS inbuilt encoding codec compresses the files by 30-40%, but still, recording in a high resolution with comfortable FPS will cause lag. Unless you got an SSD which can handle that with ezzz)