Panasonic LF-M621 DVD Writer

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What is the DVD Write speeds? CAV, CLV, PCAV, ZCLV. Read our DVD Writer colum explanation.

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Panasonic LF-M621


OEM:
Panasonic
Chipset:N/A
12xCDR CLV
8xCDRW CLV
4xDVD-R CLV
1xDVD-RW CLV
DVD-RDL
DVD+R
DVD+RW
DVD+RDL
3xDVD-RAM ZCLV
BD-R
BD-RE
BD-R DL
BD-RE DL
HDDVD-R
HDDVD-RW
HDDVD-RDL
HDDVD-RWDL
HDDVD-RAM
32xCD
12xDVD
BDROM
HDDVD
EIDE, 2MB
More info
$300 9.0/10
1 votes
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DVD Media comments for this DVD Writer (click on the link to read the comments):
1 Optodisc 4xDVD-R (OPTODISCR004) comments, 0 good, 0 mixed, 1 poor.
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Comments
1 comments, Showing 1 to 1 comments
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DVD Multi drive. Supports DVD-RAM cartridges at x3 and burns DVD-R at x4. No writing of dvd+. OEM version of this drive is SW-9572.

Retail package comes with software for viewing and editing DVD-RAM movies in VR mode which is not widely available (Panasonic DVD-MovieAlbumSE).

Package includes: Windvd 4, B's Rec Gold, B's Clips, Sonic MyDVD, DVD-MovieAlbumSE, RAM Driver, Filesafe Backup. 1 piece Panasonic DVD-RAM 4.7GB caddy type x3 speed media.

Burns Ritek G03, GO4 and Panasonic x4 DVD-R at full speed, no problems. Burns cheap audio media fine. DVD-RAM excellent for backups and re-authoring/conversion from Panasonic standalone recorders.

Good and fast at ripping audio cds. Excellent performace with EAC on scratched discs. CD-R burn speed at only x12 is not the fastest.

Not so fast at ripping dvds (x6 max on dvd-video/dvd-r, x12 on dvd-rom). However, reads dvd-rs that other drives falter on.

In summary, excellent burner package to accompany Panasonic E50 recorder. Very stable drive. Who needs dvd+ ?


Comments posted by bobones from Other, November 21, 2003. Rated this writer 9 of 10.




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Column Explanation:

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OEM
Original Equipment Manufacturer.


Chipset

The manufacturer of the main chipset the DVD writer/recorder is based on.


Write support / Read support
DVD-R
= Works
DVD-R = Is not supported
DVD-R? = Not tested


Single Layer(4.7GB) write speeds
1x (CLV) = about 58 minutes
2x (CLV) = about 29 minutes
2.4x (CLV) = about 24 minutes
4x (CLV) = about 14.5 minutes
6x (CLV/ZCLV) = about 10-12 minutes
8x (PCAV/ZCLV) = about 8-10 minutes
12x (PCAV/ZCLV) = about 6.5-7.5 minutes
16x (CAV/ZCLV) = about 6-7 minutes

Dual/Double Layer(8.5GB) write speeds
1x CLV = about 105 minutes
2.4x CLV = about 44 minutes
4x CLV = about 27 minutes

Single Layer (4.7GB) read speeds
1x read speed is 1.321MB/s = ~56 minutes
6x CAV (avg. ~4x) read speed is max 7.93MB/s = ~14 minutes
8x CAV (avg. ~6x) read speed is max 10.57MB/s = ~10 minutes
12x CAV (avg. ~8x) read speed is max 15.85MB/s = ~7 minutes
16x CAV (avg. ~12x) read speed is max 21.13MB/s = ~5 minutes


DVD Write types
CAV = Constant Angular Velocity, the DVD is written at a constantly increasing speed.
CLV = Constant Linear Velocity, the DVD is written at a constant speed.
ZCLV = Zone Constant Linear Velocity, the DVD is divided into zones. After each zone the write speed is increased.
PCAV = Partial Constant Angular Velocity, the DVD is being written at an increasing speed until a certain speed. After this speed it will not increase anymore.


Connection
Desktop = Standalone desktop DVD Recorder
EIDE = Computer DVD Writer with EIDE/IDE connection
SCSI = Computer DVD Writer with SCSI connection
USB = Computer desktop DVD Writer with USB 2.0 or/and 1.1 connection
FireWire = Computer desktop DVD Writer with IEEE 1394/FireWire/i.Link connection (some standalone desktop dvd recorder supports this also but then it is usually to connect your DV camera to the recorder)


Rating
The first rating is based on a weighted rank (the true Bayesian), it requires at least 5 votes to get a weighted rating.
The second rating between the ( ) is a normal average rating.


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