It's somewhere near 4.4GB or so even though some people use custom set for 4360. The burned discs (with decryptor) have about 1/8th inch of space (maybe a little less) at the edge of the disc & I've had no problems (with skipping or freezing) near the end of discs. Am I lucky or have I found good media? I've used some old Imation (2x Ritek G03), Maxell 4x & TY 8x discs. Each disc was burned at it's maximum write speed and they all play fine in 2 DVD players plus my computers DVDRW drive. Comments?