Number Cruncher Posted April 13, 2008 Posted April 13, 2008 Just ran into one of these for the first time... a commercial DVD I am trying to back up using which has Parallel Layer Paths instead of the usual Opposite Layer Paths. I figured it would be a simple operation, but I encountered error messages. The DVD is Day of the Dead 2008 R1. Here's Anydvd 6.4.1.2, DVDInfo 4.79, and ImgBurn 2.4.1.0's info pages of the disc: LITE-ON DVDRW LH-20A1H LL0D (ATA) Current Profile: DVD-ROM Disc Information: Status: Complete Erasable: No Sessions: 1 Sectors: 3,705,697 Size: 7,589,267,456 bytes Time: 823:31:22 (MM:SS:FF) TOC Information: Session 1... -> Track 01 (Mode 1, LBA: 0 - 3705696) -> LeadOut (LBA: 3705697) Track Information: Session 1... -> Track 01 (LTSA: 0, TS: 3705697, LRA: 0) Physical Format Information (Last Recorded): Book Type: DVD-ROM Part Version: 1 Disc Size: 120mm Maximum Read Rate: 10.08Mbps Number of Layers: 2 Track Path: Parallel Track Path (PTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 2,037,791 Last Physical Sector in Layer 0: 0 Layer Information: Layer 0 Sectors: 1,841,184 (49.69%) Layer 1 Sectors: 1,864,513 (50.31%) Creating an image doesn't seem to cause any problems. I forced the MDS creation setting to "Yes". However, when I go to write the image, I get the following message: I went ahead and clicked "Yes". I noticed that the first layer was changed from (LBA: 0 - 1841183) to (LBA: 0 -1855407) and the second layer was changed from (LBA: 1841184 - 3705696) to (LBA: 1855407 - 3705696). Here's ImgBurn's log of the read and write process: http://tommycatkins.com/dotd/imgburn_log.txt Here's the status pages of the copy: LITE-ON DVDRW LH-20A1H LL0D (ATA) Current Profile: DVD+R DL Disc Information: Status: Complete Erasable: No Sessions: 1 Sectors: 3,705,712 Size: 7,589,298,176 bytes Time: 823:31:37 (MM:SS:FF) TOC Information: Session 1... -> Track 01 (Mode 1, LBA: 0 - 3705711) -> LeadOut (LBA: 3705712) Track Information: Session 1... -> Track 01 (LTSA: 0, TS: 3705712, LRA: 0) Disc Control Blocks Information: LITE-ON Physical Format Information (ADIP): Disc ID: MKM-001-00 Book Type: DVD+R DL Part Version: 1 Disc Size: 120mm Maximum Read Rate: Not Specified Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 16,580,607 Last Physical Sector in Layer 0: 2,283,519 Physical Format Information (Last Recorded): Disc ID: MKM-001-00 Book Type: DVD-ROM Part Version: 1 Disc Size: 120mm Maximum Read Rate: Not Specified Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 16,575,503 Last Physical Sector in Layer 0: 2,052,015 Layer Information: Layer 0 Sectors: 1,855,408 (50.07%) Layer 1 Sectors: 1,850,304 (49.93%) I'm wondering why ImgBurn was not able to preserve the original layer sizes of 1,841,184 and 1,864,513 (just written as opposite layer paths instead of parallel layer paths)? In fact, just for kicks, I also tried doing a 1:1 copy with CloneCD and Nero 8's "DVD Copy" function. These were unable to set the book type to DVD-ROM for some reason (CloneCD doesn't do booktype directly, but I used Liteon's Booktype - Bitsetting Utility 1.3.5 to write to the EEPROM of my drive so that DVD-ROM always gets set, and it didn't work with CloneCD). However, both of these applications set DIFFERENT layer break positions. Nero 8.3.2.1 looks like it did the layer break at exactly 50%: LITE-ON DVDRW LH-20A1H LL0D (ATA) Current Profile: DVD+R DL Disc Information: Status: Complete Erasable: No Sessions: 1 Sectors: 3,705,696 Size: 7,589,265,408 bytes Time: 823:31:21 (MM:SS:FF) TOC Information: Session 1... -> Track 01 (Mode 1, LBA: 0 - 3705695) -> LeadOut (LBA: 3705696) Track Information: Session 1... -> Track 01 (LTSA: 0, TS: 3705696, LRA: 0) Disc Control Blocks Information: LITE-ON Physical Format Information (ADIP): Disc ID: MKM-001-00 Book Type: DVD+R DL Part Version: 1 Disc Size: 120mm Maximum Read Rate: Not Specified Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 16,580,607 Last Physical Sector in Layer 0: 2,283,519 Physical Format Information (Last Recorded): Disc ID: MKM-001-00 Book Type: DVD+R DL Part Version: 1 Disc Size: 120mm Maximum Read Rate: Not Specified Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 16,580,607 Last Physical Sector in Layer 0: 2,049,455 Layer Information: Layer 0 Sectors: 1,852,848 (50%) Layer 1 Sectors: 1,852,848 (50%) CloneCD 5.3.1.0 did it at 56.32% (I think it may have burnt to the outside edge of the disc for the first layer): LITE-ON DVDRW LH-20A1H LL0D (ATA) Current Profile: DVD+R DL Disc Information: Status: Complete Erasable: No Sessions: 1 Sectors: 3,705,712 Size: 7,589,298,176 bytes Time: 823:31:37 (MM:SS:FF) TOC Information: Session 1... -> Track 01 (Mode 1, LBA: 0 - 3705711) -> LeadOut (LBA: 3705712) Track Information: Session 1... -> Track 01 (LTSA: 0, TS: 3705712, LRA: 0) Disc Control Blocks Information: LITE-ON Physical Format Information (ADIP): Disc ID: MKM-001-00 Book Type: DVD+R DL Part Version: 1 Disc Size: 120mm Maximum Read Rate: Not Specified Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 16,580,607 Last Physical Sector in Layer 0: 2,283,519 Physical Format Information (Last Recorded): Disc ID: MKM-001-00 Book Type: DVD+R DL Part Version: 1 Disc Size: 120mm Maximum Read Rate: Not Specified Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 16,112,495 Last Physical Sector in Layer 0: 2,283,519 Layer Information: Layer 0 Sectors: 2,086,912 (56.32%) Layer 1 Sectors: 1,618,800 (43.68%) Do any of you guys have any experience backing up a commercial DVD with parallel layers? Did I do this the best way I could, or, do you have any suggestions or tips on how to do this better?
mmalves Posted April 13, 2008 Posted April 13, 2008 I'm wondering why ImgBurn was not able to preserve the original layer sizes of 1,841,184 and 1,864,513 (just written as opposite layer paths instead of parallel layer paths)? Because L1 is bigger than L0 and that can't happen with OTP discs. Follow this guide (use X:\VIDEO_TS as the source) and see which layerbreak options you get. Use the Preview button to find a layerbreak where a small pause will be less noticeable.
Number Cruncher Posted April 13, 2008 Author Posted April 13, 2008 (edited) Because L1 is bigger than L0 and that can't happen with OTP discs. Follow this guide (use X:\VIDEO_TS as the source) and see which layerbreak options you get. Use the Preview button to find a layerbreak where a small pause will be less noticeable. Oh, I see. I didn't even think of that... there wouldn't be enough room for the second layer! I'm still wondering how ImgBurn deceided where to place the new layer break position. For example, with Nero it was exactly 50.00%, but with ImgBurn it was 50.07%. Anyway, if the copy works fine, the layer break pause really doesn't bother me. But it's nice to know that I could manually set the layer break if I really wanted to, so thanks for the link! Edited April 13, 2008 by Number Cruncher
Number Cruncher Posted April 13, 2008 Author Posted April 13, 2008 As a side note... if the layer change happens in the middle of video for a parallel layer path DVD, wouldn't there be a huge pause while the laser moves back to the beginning of the disc?
blutach Posted April 13, 2008 Posted April 13, 2008 Yes, there would, but if it happens at a fade out in video and audio, it might not be that noticeable. Clearly, you'll need to remaster the DVD. Regards
Number Cruncher Posted April 13, 2008 Author Posted April 13, 2008 I'm kind of curious as to why the DVD has to be remastered (ripped first) when creating a new layer break position. In the case of this parallel track path DVD, three different applications inserted their own layer break positions... one of them (CloneCD) inserted one that was radically different than the other two (Nero and ImgBurn). If the applications can set a new layer break position on a 1:1 ISO, why can't the user?
blutach Posted April 14, 2008 Posted April 14, 2008 You don't need to re-rip. Mount or extract the files from the ISO and use build mode. Regards
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