You may not be able to record fights (PS3, XBox 360) with a DVD-Recorder because of copy protection.
A lot of game systems can and do scramble video signals. Oh, they display fine on a TV set but when you try to record them you get a bunch of lines with noise or static-ey noise.
I was able to record from the Sega Saturn onto VHS tape fine with no sound distortion. With the Dreamcast, there was definite sound distortion. PS2-onward, DVD-format I don’t think records without some kind of video stabilizer.
Best shot for recording – probably a camcorder between you and the TV or over the shoulder and zoomed in on your set.
Second shot – fine a PC capture card that doesn’t have problems with copy protection.
Third option, find a video stabilizer on market that’s compatible with your DVD-Recorder. You have to put video lines coming out of the source you want to record into the video stabilizer THEN another set of lines from the stabilizer to the recorder. That’s usually what people use for recording from old pre-recorded VHS tapes…
Stabilizers are very grey market and are not carried in stores anymore. Net-only…