Writing speed issue

[Am Shagar]

Hi all,


I have a speed problem with my DVD writer. It is supposed to write from 4x-16x, which it was until recently.

First i thought it was the brand of my DVD-R that i change, (Verbatim DVD-R 16x Certified) but it's not that.

Alcohol and nero only write at 4x max, nero give only 4x choice and alcohol Maximum or 31x ???

Picture of Alcohol:


And if you look at the following pic you will notice that alcohol show:

Max read speed: 8x
Max write speed: 4x


Picture:


So, my question is: Why (or can) the specs of my DVD drive change and can it be fixed?



Some other info:


(H ATAPI DVD DD 2X16X4X16(1:1) detail information.

Vendor Identification: ATAPI
Product Identification: DVD DD 2X16X4X16
Production Revision Level: G7H9
Location: atapi, Port 1, Bus 0, Target 1, Lun 0
Support recording method: DAO, RAW SAO, RAW SAO+SUB, RAW DAO(96), TAO, DVD DAO
BURN-Free Technology: Seamless Link
Auto-Select best write speed: Not Supported
-* Note: This information below is provided by the unit, it might be inaccurate. *-
-* This software does not use this information! *-
Removable media: Yes
Version: ATAPI (INF-8090i/INF-8020i/INF-8028i)
Response Data Format: 02h
CD-R Read/Write: Yes/Yes
CD-RW Read/Write: Yes/Yes
Read CD-R Fixed Packet: Yes
Test Write: Yes
DVD-ROM Read: Yes
DVD-R Read/Write: Yes/Yes
DVD-RAM Read/Write: No/No
Audio Play: Yes
Composite Audio and Video Data Stream: No
Digital output (IEC958) on port 1 Supported: Yes
Digital output (IEC958) on port 2 Supported: No
Mode 1 Form 2: Yes
Mode 2 Form 2: Yes
Multi-Session: Yes
BUF: Yes
CD-DA Commands supported: Yes
CD-DA Stream is Accurate: Yes
R-W Supported: Yes
R-W De-interleaved and Corrected: No
C2 Pointers Support: No
ISRC Supported: Yes
UPC Supported: Yes
Read Bar Code: No
Lock media into the drive: Yes
Currently drive Lock state: Unlocked
Prevent Jumper: No
Eject Command: Yes
Separate volume levels: No
Separate channel mute: No
Changer Supports Disc Present: No
Software slot selection: No
Side change capable: No
P through W in Lead-In: Yes