That won't work. For several reasons:
1- The DVD driver is not just the dvdplayer.elf file. It also use an encrypted IRX file.
2- Placing a FCMB encrypted elf file as dvdplayer.elf will merely have the effect of booting FCMB when you insert a DVD Video disc.
3- You need to install the DVD player update from the disc and there is no workaround to bypass that.
4- The Memory Card install process is dependent on the "DISC-ID" so if you have a modchip it should be disabled.
5- Due to the need of "DISC-ID" to authenticate and sign the DVD Player files, obviously CD-R copies of the DVD Utility disc are useless.
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)