detail information
| Posted by | Jan S. |
| Posted on | 22/09/04 17:18 |
| Number of views | 11594 |
DVD+R Dual Layer writing speed and compatibility:
The Philips DVDR1640P supports the DVD+R DL standard for writing Dual Layer discs with a size of 8.5 GB. Let us first take a look at the media's we will use:
Let's find the manufacturer and media information too, for this we will use DVD Identifier 3.4:
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Unique Disc Identifier : [DVD+R-DL:MKM-001-000]
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Disc Type : [DVD+R DL]
Manufacturer ID : [MKM]
Manufacturer Name : [Mitsubishi Kagaku Media]
Media Type ID : [001]
Product Revision : [Not Specified]
Disc Application Code : [General Purpose]
Recording Speeds : [1x , 2.4x]
Blank Disc Capacity : [4,173,824 Sectors = 8,152.0MB = 7.96GB (8.55GB)]
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[DVD Identifier - http://DVD.Identifier.CDfreaks.com]
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Full media code:
0000 : e1 0f 32 10 00 03 00 00 00 fc ff ff 00 22 d7 ff ..2.........."..
0010 : 00 00 00 4d 4b 4d 00 00 00 00 00 30 30 31 00 40 ...MKM.....001.@
0020 : 25 25 37 0c 02 2f 63 02 2f 63 21 23 0d 0e 14 14 %7../c./c!#....
0030 : 02 01 01 10 00 21 23 0d 0e 14 14 02 01 01 10 00 .....!#.........
The media
is made by Mitsubishi Kagaku (Media in
Manufacturer and media information:
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Unique Disc Identifier : [DVD+R-DL:MKM-001-000]
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Disc Type : [DVD+R DL]
Manufacturer ID : [MKM]
Manufacturer Name : [Mitsubishi Kagaku Media]
Media Type ID : [001]
Product Revision : [Not Specified]
Disc Application Code : [General Purpose]
Recording Speeds : [1x , 2.4x]
Blank Disc Capacity : [4,173,824 Sectors = 8,152.0MB = 7.96GB (8.55GB)]
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0000 : e1 0f 32 10 00 03 00 00 00 fc ff ff 00 22 d7 ff ..2.........."..
0010 : 00 00 00 4d 4b 4d 00 00 00 00 00 30 30 31 00 40 ...MKM.....001.@
0020 : 25 25 37 0c 02 2f 63 02 2f 63 21 23 0d 0e 14 14 %7../c./c!#....
0030 : 02 01 01 10 00 21 23 0d 0e 14 14 02 01 01 10 00 .....!#.........
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[DVD Identifier - http://DVD.Identifier.CDfreaks.com]
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The media is made by Mitsubishi Kagaku (Media in
Testing procedure: We created an ISO Image of the largest DVD-Video disc we had (Nemo, 7.91 GB (8.495.888.384 bytes)) using DVD-Decrypter. Then we wrote this image file using Nero Burning ROM 6. Below are the results:
Written with Firmware P2.1 and Verbatim branded DL media.
Written with Firmware P2.2 and Philips branded DL media.
Philips DVD1640P used 45 minutes and 59 seconds for writing the Verbatim DVD+R DL at 2.4x, for the Philips branded DL media it used 45 minutes and 56 seconds at 2.4x. Let us take a look at the K-Probe results of the created discs:
Written with Firmware P2.1 and Verbatim DL media.
Written with Firmware P2.2 and Philips DL media.
We can easily see the amount of errors is higher in the 2nd layer of the Verbatim DL Media. On the Philips DL media, the KProbe result is better in avg. PI.
Now it's time to take a look at some reading tests with various DVD-Writers and DVD-ROM drives.
First we will try to read the discs back in the Philips DVDR1640P drive:
Verbatim DVD+R9 DL
Philips DVD+R9 DL
As we could see the Philips drive had no problems reading the discs, but the reading speed is 8x, according to the drive specifications it should be 10x. Let us try some other drives to read the Dual Layer discs:
Verbatim DVD+R9 DL
Philips DVD+R9 DL
The LG GSA-4120B Dual Layer drive did not have any problems with reading the dual layer discs either.
Verbatim DVD+R9 DL
Philips DVD+R9 DL
As we can see, the discs could be read back without any problems in the Lite-On SOHW-832S Dual Layer Drive, Let's try reading the discs in a Artec/Ultima 16x DVD-ROM:
Verbatim DVD+R9 DL
Philips DVD+R9 DL
An excellent reading curve - close to 11x reading speed, except the Philips branded media, it shows a major speed down just before the layer break.
| Drive | Size | Writing | Writing | Book | KProbe | KProbe |
| Philips | 8016 MB | 2.4x | 45m:05s | DVD-ROM | 3.05 | 0.02 |
| SONY | 8016 MB | 2.4x | 44m:37s | DVD-ROM | 66.52 | 0.05 |
| LaCie d2 | 8103 MB | 2.4x | 42m:44s | DVD-ROM | 6.43 | 0.16 |
| Philips | 8103 MB | 2.4x | 45m:59s | DVD-ROM | 3.33 * | 0.06 * |
* Verbatim DVD+R9 DL
** Philips DVD+R9 DL
Standalone DVD-Player compatibility:
We do only have 3 standalone DVD-Players available to test the Philips DVD+R9 DL written DVD (Book Type: DVD-ROM is done automatic by the firmware).
⋅ Aiwa DVD Player XD-DV370
⋅ Medion DVD/Div-X Player MD7457
⋅ Red Star DVD-Player 230G
Compatibility results:
All of the 3 standalone Players played the burned DVD+R DL's back without any problems.
Summary: Very good results! The Philips drive also sets the book type automatic to DVD-ROM. If we should point something out it will be the PI spikes in the beginning of the first layer on the DL media.
Before we round off this review, let us run the drive through some advanced tests at next page…
DVD-R/RW Writing performance
http://club.cdfreaks.com/showthread.php?t=108539
Those +R results indeed look pretty nice.
Wish I had one of these drives...
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