Re: OT - dvd recording differences
Rodney D. Myers wrote:
>
> for the "+" media;
>
> dvd+rw-mediainfo /dev/hda
> INQUIRY: [BENQ ][DVD DD DW1620 ][B7H9]
> GET [CURRENT] CONFIGURATION:
> Mounted Media: 1Bh, DVD+R
> Current Write Speed: 16.0x1385=22160KB/s
> Write Speed #0: 16.0x1385=22160KB/s
> Write Speed #1: 12.0x1385=16620KB/s
> Write Speed #2: 8.0x1385=11080KB/s
> Write Speed #3: 4.0x1385=5540KB/s
> Write Speed #4: 2.4x1385=3324KB/s
> GET [CURRENT] PERFORMANCE:
> Write Performance: 16.0x1385=22160KB/s@[0 -> 2295103]
> Speed Descriptor#0: 00/2295103 R@3.5x1385=4787KB/s W@16.0x1385=22160KB/s
> Speed Descriptor#1: 00/2295103 R@3.5x1385=4787KB/s W@12.0x1385=16620KB/s
> Speed Descriptor#2: 00/2295103 R@3.5x1385=4787KB/s W@8.0x1385=11080KB/s
> Speed Descriptor#3: 00/2295103 R@3.5x1385=4787KB/s W@4.0x1385=5540KB/s
> Speed Descriptor#4: 00/2295103 R@3.5x1385=4787KB/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
> ROM Compatibility LBA: 265696
> READ CAPACITY: 0*2048=0
>
>
> for the "-" media;
>
> dvd+rw-mediainfo /dev/hda
> INQUIRY: [BENQ ][DVD DD DW1620 ][B7H9]
> GET [CURRENT] CONFIGURATION:
> Mounted Media: 11h, DVD-R Sequential
> Media ID: CMC MAG. AM3
> Current Write Speed: 4.0x1385=5540KB/s
> Write Speed #0: 4.0x1385=5540KB/s
> GET [CURRENT] PERFORMANCE:
> Write Performance: 4.0x1385=5540KB/s@[0 -> 2297887]
> Speed Descriptor#0: 00/2297887 R@3.5x1385=4787KB/s W@4.0x1385=5540KB/s
> READ DVD STRUCTURE[#10h]:
> Media Book Type: 25h, DVD-R book [revision 5]
> Legacy lead-out at: 2297887*2KB=4706072576
> READ DVD STRUCTURE[#0h]:
> Media Book Type: 25h, DVD-R book [revision 5]
> Last border-out at: 0*2KB=0
> 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: invisible incremental
> Track Start Address: 0*2KB
> Next Writable Address: 0*2KB
> Free Blocks: 2297888*2KB
> Track Size: 2297888*2KB
> READ CAPACITY: 0*2048=0
>
The benq document about supported media for 1620 says that CMC MAG. AM3
is supported and can be written at a max speed of 16x. Your drive tells
4.0x max. Something seems to be amiss here!!
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