PTP vs OTP issue? Why are original and copy different

[mikec]

If anyone can help with this, I would appreciate it.

 

I have burned a lot of discs over the years, and never had many issue; always use good burners and media (update firmware, Verbatim disc, etc.)

 

I am trying to make a working backup of my navigation dvd for my car. I learned long ago with kids that you need to make backups, as they love pressing buttons and handling discs.

 

Here is the info of the original disc ISO:

 

Current Profile: DVD-ROM

 

Disc Information:

Status: Complete

Erasable: No

Sessions: 1

Sectors: 3,603,491

Size: 7,379,949,568 bytes

Time: 800:48:41 (MM:SS:FF)

 

TOC Information:

Session 1...

-> Track 01 (Mode 1, LBA: 0 - 3603490)

-> LeadOut (LBA: 3603491)

 

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: 2,082,239

Last Physical Sector in Layer 0: 0

 

Layer Information:

Layer 0 Sectors: 1,885,632 (52.33%)

Layer 1 Sectors: 1,717,859 (47.67%)

 

----

 

I made an ISO of this disc, and burned a copy to a Verbatime DVD+R DL disc, with booktype set to DVD-ROM, and write speed 1x.

 

Here is the info on the copy:

 

Current Profile: DVD+R DL

 

Disc Information:

Status: Complete

Erasable: No

Sessions: 1

Sectors: 3,603,504

Size: 7,379,976,192 bytes

Time: 800:48:54 (MM:SS:FF)

 

TOC Information:

Session 1...

-> Track 01 (Mode 1, LBA: 0 - 3603503)

-> LeadOut (LBA: 3603504)

 

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: 16,412,847

Last Physical Sector in Layer 0: 2,082,239

 

Layer Information:

Layer 0 Sectors: 1,885,632 (52.33%)

Layer 1 Sectors: 1,717,872 (47.67%)

 

---

The copy burns fine. But when I put it in the navigation drive, the disc is not recognized. "DVD not readable/wrong type"; some type of message like that.

 

I have made about 3 copies, all with the same results.

 

So here's where I am:

 

- I think the PTP vs. OTP has something to do with it, but I'm not sure.

- This disc info for the original disc and copy are not the same; shouldn't they be? I suspect it might be related to PTP vs. OTP, but again, not sure.

- Any ideas on how to deal with this? Do I need another app? (ex. PgcEdit)

 

Any pointers would be appreciated.

Edited May 1, 2007 by mikec

[dontasciime]

This has popped up quite a bit and I do not think anyone has a fix for this.

 

Off to search google again.

 

[edit] http://forum.imgburn.com/index.php?showtopic=2628

[LIGHTNING UK!]

Give up trying.

 

If it doesn't work now, it's not going to.

[mikec]

This has popped up quite a bit and I do not think anyone has a fix for this.

 

Off to search google again.

 

[edit] http://forum.imgburn.com/index.php?showtopic=2628

 

 

Yes, I had poked around, but was looking for a definitive answer.

 

It sounds like it is impossible to make a backup.