DVD Burner speed trouble on FC4

[Michel MENGIS]

Dear sirs,

 

I’m using a DELL Latitude D810 with a DVD Burner.

I installed a FC4 (full installation), and I upgraded it using yum. So I’m
running 2.6.12-1.1398-FC4

 

My DVD Burner is a NEC DVD+-RW ND-6500A.

 

By doing this test:

            Copy a 2Gb file from the DVD to the harddisk.

 

                        On windows:  4minutes 3 seconds

                        On linux: 27 minutes.

 

hdparm –I /dev/hdc tells me that DMA isn’t activated
 

hdparm –d 1 /dev/hdc tells me that I’m not allowed to activate DMA on the
DVD burner


 

Why ?

How to bring my DVD to work on linux as on windows ?

 

Best regards,

 

Michel MENGIS__________________________

POSEIDON Project Manager

EPFL - DIT - DIT-SB

Ecole Polytechnique Fédérale de Lausanne

Swiss Federal Institut of Technology Lausanne

Tel: (+41) 021 693 2266

 

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