Re: [SLE] DVD writing speed reported by dvd+rw-mediainfo

From: Clive Rogers (c.rogers_at_ntlworld.com)
Date: 01/17/05

  • Next message: Patrick Shanahan: "Re: [SLE] How to enable 3D in SuSE 9.2" 
    To: suse-linux-e@suse.com
Date: Mon, 17 Jan 2005 22:06:03 +0000

    On Monday 17 January 2005 19:36, Alexandr Malusek wrote:
    > Hi,
    >
    > Does dvd+rw-mediainfo (SUSE 9.2, dvd+rw-tools-5.21.4.10.8-2) provide
    > reliable information? In my case, it reports:
    >
    > $ dvd+rw-mediainfo /dev/dvd
    > INQUIRY: [PLEXTOR ][DVDR PX-712A ][1.05]
    > GET [CURRENT] CONFIGURATION:
    > Mounted Media: 1Bh, DVD+R
    > Media ID: YUDEN000/T01
    > Current Write Speed: 8.0x1385=11080KB/s
    > Write Speed #0: 8.0x1385=11080KB/s
    > Write Speed #1: 6.0x1385=8310KB/s
    > Write Speed #2: 4.0x1385=5540KB/s
    > Write Speed #3: 2.4x1385=3324KB/s
    > GET [CURRENT] PERFORMANCE:
    > Write Performance: 6.0x1385=8310KB/s@0 -> 8.0x1385=11080KB/s@2295103
    > Speed Descriptor#0: 02/2295104 R@12.0x1385=16620KB/s
    > W@8.0x1385=11080KB/s Speed Descriptor#1: 02/2295104
    > R@12.0x1385=16620KB/s W@6.0x1385=8310KB/s Speed Descriptor#2: 02/2295104
    > R@12.0x1385=16620KB/s W@4.0x1385=5540KB/s Speed Descriptor#3: 02/2295104
    > R@12.0x1385=16620KB/s W@2.4x1385=3324KB/s READ DISC INFORMATION:
    > Disc status: blank
    > Number of Sessions: 1
    > State of Last Session: empty
    > Number of Tracks: 1
    > READ TRACK INFORMATION[#1]:
    > Track State: blank
    > Track Start Address: 0*2KB
    > Next Writable Address: 0*2KB
    > Free Blocks: 2295104*2KB
    > Track Size: 2295104*2KB
    > READ CAPACITY: 1*2048=2048
    >
    > for a blank 1-4x DVD+R, Maxell.
    >
    > Does it mean that the disk advertises the writing speed 8x? (See
    > "Current Write Speed" above). The "auto speed" option in K3b resulted
    > in the 8x speed, the burning was OK but the disk was not readable.
    > When I forced the 4x speed then both the burning and reading was OK.
    >
    > What is wrong? (media, dvd+rw-mediainfo, DVD drive or K3b?)
    >
    > --
    > A.M.

    This sounds very much like a problem I had yesterday. I was forcing my DVD
    writer to write at X4 and I could not understand why the DVD's were not
    readable until I re-read the label on the the blank DVD's. Times 2.4. When
    I wrote at that speed all was well. 

    -- 
Clive.
Fighting for darker skies.
52.41 N  1.30 W
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