Problems with EP45 DSR3R and Sata Optical Drive

Hi to all
sorry for pour English, i'm from France
I bought this Mobo on september 2008 with an Q6700 CPU and 3Go HyperX
Kingston Memory ( 2*1Go+2*1Go @750 Mhz) and POW Geforce 9800GT
Also i bought :
Fixed hard disk media (HDD) Hitachi HDP725050GLA360 500 GBytes IDE SATA-II
40 ºC (104 ºF)
Fixed hard disk media (HDD) Hitachi HDT725040VLA360 400 GBytes IDE SATA-II
44 ºC (111 ºF)
Fixed hard disk media (HDD) WDC WD1600BB-22GUA0 160 GBytes IDE ATA 45 ºC
(113 ºF)
Direct Access Device IOMEGA ZIP 100 USB Device 98 MBytes USB USB
DVD SAMSUNG DVD-ROM SD-616E IDE ATAPI
Graveur DVD LG HL-DT-ST DVDRAM GH20NS15 IDE ATAPI plugg on SATA channel 3
Graveur DVD ASUS DRW-20B1LT IDE ATAPI plugg on SATA channel 4

The DVD+RW writter LG works fine, but the Asus doesn't work, i use Nero 8 to
burn with, thes burning session work fine, no errors report, but when i try
to explore the CD , windows Explorer crash with no reponse..... I bought
this DVD writter one week ago, before, i've bought an Lite On iHAS 122, who
done exactly the same thing, so i return it with RMA and change it with this
Asus, and no more match.....
I try to modify bios with SATA Port 0-3 to Native mode, but this affect
nothing....Will try to modify SATA to AHCI mode but , i don't really
understand what it does....
Have you an Idea to help me ?
Thanks for reply and have a good day


--
Roswellbob

http://perso.wanadoo.fr/gastounet/
http://perso.wanadoo.fr/gastounet/Sylvestre/
http://perso.wanadoo.fr/gastounet/Arsouille/