Sure it will, though it's much more cost effective to use a program like DVD Shrink(which happens to be freeware) to compress the DVD9's down to a DVD5.
Very easy to use and is regared as the best on the planet.
Full working trial version. You just copy the main move on to a DVD5 (4.7Gig) or the complete DVD. This s/w can also burn to a Dual layer Disc (If you have a D/L burnner.
i have a dual layer burner and have found that my lite on dvdrom and my rca stand alone player will not play the burned dual layer discs . the burner i used to burn the discs is the only thing that will play the burned dual layer discs in my case . i suppose i could try to flash the firmware for my dvdrom to maybe get it to read burned dual layer discs . that would be kind of pointless as i watch very few movies on my pc anyhow . i originally thought burning to dual layer discs would be nice when the price of the media came down . them thoughts have changed since none of my players will play these burned dual layer discs . its kind of a waste when the burner is the only rom that will read these discs . i cant see buying all new hardware just to watch burned dual layer discs .
concerning recuced quality- iso if you use DVD Shrink to author only the movie and set for a deep scan and also sharp (default) auto burn to DVD Decrypter you can not tell a difference between original - however if you use DVD Shrink to simply backup full disc the picture will appear blocky - try it - spider man 1 the redheads hair was very noticable (blocky) also if one copy just click on auto delete box when burn starts.
Using the methond marcmn laid out, with DVD Decrypter and DVD Shrink, produces the best quality backups possible when compressing, and since they are both freeware, there is really no reason to spend money on programs that would do the same thing. The few DL DVDs I've burned have played fine in my ps2, which is the crapiest DVD player out there, so I assume that they will play in the majority of players, but since the media is expensive, oyu might want to check on the product page of your DVD player. See if the company lists the media with which the player is compatable, and see if there is any firmware available that might increase its compatability.
You could not tell the difference between a compressed backup using DVD Shrink, and the real thing, as long as you use quality media. Some people are anal about getting a exact backup copy, but if you ask me thats just OCD. My eyes and ears can't tell the difference, and thats good enough for me.
