Burning with half speed

I got a SONY DVD RW DW-Q30A… It used to work flawlessly until lately i noticed that it became slower! No matter what speed i choose to record it starts from the half and then slowly rise until it reaches the speed i chose! For example i choose 40x to burn a cd…it starts from 19x and slowly rising and at the end it reaches 40x! Why is this happening? I can’t seem to find any solution! I switched cables, checked the dma… Any help? I noticed the drive runs on UDMA mode 2…shouldn’t it be on UDMA mode 4?..how can i change that? would this have any difference?

Here is the nero log! Here i burned a dvd…it started from 6x and at the end it reached 16x…which was the speed i had chosen!

Windows XP 5.1
IA32
WinAspi: -

NT-SPTI used
Nero Version: 7.10.1.0
Internal Version: 7, 10, 1, 0
(Nero Express)
Recorder: <SONY DVD RW DW-Q30A> Version: YYS6 - HA 1 TA 0 - 7.10.1.0
Adapter driver: <IDE> HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ?
CD-ROM: <LITE-ON DVD SOHD-16P9SV >Version: F$01 - HA 1 TA 1 - 7.10.1.0
Adapter driver: <IDE> HA 1

=== Scsi-Device-Map ===
CdRomPeripheral : SONY DVD RW DW-Q30A atapi Port 0 ID 0 DMA: On
CdRomPeripheral : LITE-ON DVD SOHD-16P9SV atapi Port 0 ID 1 DMA: On
DiskPeripheral : Maxtor 6V160E0 atapi Port 1 ID 0 DMA: On
CdRomPeripheral : UG2202O FAV516V 2.0B asm66h9z Port 6 ID 0 DMA: Off

=== CDRom-Device-Map ===
SONY DVD RW DW-Q30A D: CdRom0
LITE-ON DVD SOHD-16P9SV E: CdRom1
UG2202O FAV516V J: CdRom2

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 83886080 (0) Byte
BUFE : 0
Physical memory : 2047MB (2096620kB)
Free physical memory: 1580MB (1618356kB)
Memory in use : 22 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

20.7.2007
ISO compilation
3:32:29 PM #1 Text 0 File SCSIPTICommands.cpp, Line 424
LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL

3:32:30 PM #2 Text 0 File Isodoc.cpp, Line 6666
Iso document burn settings
------------------------------------------
Determine maximum speed : FALSE
Simulate : FALSE
Write : TRUE
Finalize CD : TRUE
Multisession : FALSE
Burning mode : DAO
Mode : 1
ISO Level : 1 (Max. of 11 = 8 + 3 char)
Character set : ISO 9660
Joliet : TRUE
Allow pathdepth more than 8 directories : TRUE
Allow more than 255 characters in path : TRUE
Write ISO9660 ;1 file extensions : TRUE

3:32:30 PM #3 ISO9660GEN -11 File Geniso.cpp, Line 3343
First writeable address = 0 (0x00000000)

3:32:30 PM #4 Text 0 File Burncd.cpp, Line 3508
Turn on Disc-At-Once, using DVD media

3:32:30 PM #5 Text 0 File DlgWaitCD.cpp, Line 307
Last possible write address on media: 2295103 (510:01.28, 4482MB)
Last address to be written: 1734063 (385:20.63, 3386MB)

3:32:30 PM #6 Text 0 File DlgWaitCD.cpp, Line 319
Write in overburning mode: NO (enabled: CD)

3:32:30 PM #7 Text 0 File DlgWaitCD.cpp, Line 2972
Recorder: SONY DVD RW DW-Q30A, Media type: DVD+R
Disc Manufacturer ID: CMC MAG, Media Type ID: M01, Product revision number: 0
Disc Application Code: 0, Extended Information Indicators: 7

3:32:30 PM #8 Text 0 File DlgWaitCD.cpp, Line 493
>>> Protocol of DlgWaitCD activities: <<<
=========================================

3:32:30 PM #9 Text 0 File ThreadedTransferInterface.cpp, Line 793
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 ()
2 indices, index0 (150) not provided
original disc pos #0 + 1734064 (1734064) = #1734064/385:20.64
relocatable, disc pos for caching/writing not required/ required
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 1734064 blocks [D: SONY DVD RW DW-Q30A]
--------------------------------------------------------------

3:32:30 PM #10 Text 0 File ThreadedTransferInterface.cpp, Line 995
Prepare [D: SONY DVD RW DW-Q30A] for write in CUE-sheet-DAO
DAO infos:
==========
MCN: “”
TOCType: 0x00; Session Closed, disc fixated
Tracks 1 to 1: Idx 0 Idx 1 Next Trk
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 3551363072, ISRC “”
DAO layout:
===========
__Start|___Track|Idx|CtrlAdr|Size|NWA|RecDep
0 | lead-in | 0 | 0x41 | 0 | 0 | 0x00
0 | 1 | 0 | 0x41 | 0 | 0 | 0x00
0 | 1 | 1 | 0x41 | 1734064 | 0 | 0x00
1734064 | lead-out | 1 | 0x41 | 0 | 0 | 0x00

3:32:30 PM #11 Text 0 File SCSIPTICommands.cpp, Line 215
SPTILockVolume - completed successfully for FSCTL_LOCK_VOLUME

3:32:30 PM #12 Text 0 File Burncd.cpp, Line 4294
Caching options: cache CDRom or Network-Yes, small files-Yes (<64KB)

3:32:30 PM #13 Phase 24 File dlgbrnst.cpp, Line 1762
Caching of files started

3:32:30 PM #14 Text 0 File Burncd.cpp, Line 4413
Cache writing successful.

3:32:30 PM #15 Phase 25 File dlgbrnst.cpp, Line 1762
Caching of files completed

3:32:30 PM #16 Phase 36 File dlgbrnst.cpp, Line 1762
Burn process started at 16x (22,160 KB/s)

3:32:30 PM #17 Text 0 File ThreadedTransferInterface.cpp, Line 2721
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

3:32:30 PM #18 Text 0 File Cdrdrv.cpp, Line 9872
---- Disc Structure: Physical Format Information (00h) ----
Media Type: 0, Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
Book Type: DVD+R (10), Part Version: 1.0x (1)
Disc Size: 120 mm, Maximum Rate: <not specified> (F h)
Number of Layers: 1, Track Path: Parallel Track Path (PTP), Layer Type: recordable
Linear Density: 0,267 um/bit, Track Density: 0,74 um/track
Starting Physical Sector Number of Data Area: 30000 h (DVD-ROM, DVD-R/-RW, DVD+R/+RW)
End Sector Number in Layer 0: 0 h (LBN: FFFD0000 h, 4193920 MB)
Data in Burst Cutting Area (BCA) does not exist
Disc Application Code: 0 / 0 h
Extended Information indicators: 7 h
Disc Manufacturer ID: CMC.MAG.
Media type ID: M01
Product revision number: 0
Number of Physical format information bytes in use in ADIP up to byte 63: 56
Media Specific [16…63]:
00 00 07 43 4D 43 20 4D - 41 47 00 4D 30 31 00 38 …CMC.MAG.M01.8
23 54 37 18 00 3E 6E 00 - 70 62 15 15 0B 0B 08 08 #T7…>n.pb…
01 19 1B 0B 0B 0E 0F 01 - 00 00 00 00 00 00 00 00 …

3:32:30 PM #19 Text 0 File DVDR.cpp, Line 7098
Drive: SONY DVD RW DW-Q30A
Book Type request [LO], rev 3: DVD-ROM
Changing the Book Type was finished successfully, return code 0

3:32:30 PM #20 CDR -1207 File DVDR.cpp, Line 6477
Book Type automatically set to: DVD-ROM

3:32:30 PM #21 Text 0 File DVDPlusRW.cpp, Line 675
Start write address at LBA 0
DVD high compatibility mode: Yes

3:32:30 PM #22 Text 0 File ThreadedTransfer.cpp, Line 269
Pipe memory size 83836800

3:37:25 PM #23 Text 0 File WriterStatus.cpp, Line 113
<D: SONY DVD RW DW-Q30A> start writing Lead-Out at LBA 1734064 (1A75B0h), length 0 blocks

3:37:44 PM #24 Text 0 File DVDPlusRW.cpp, Line 935
EndDAO: Last written address 1734064

3:37:44 PM #25 Text 0 File DVDR.cpp, Line 7098
Drive: SONY DVD RW DW-Q30A
Book Type request [LO], rev 3: DVD+R
Changing the Book Type was finished successfully, return code 0

3:37:44 PM #26 Phase 37 File dlgbrnst.cpp, Line 1762
Burn process completed successfully at 16x (22,160 KB/s)

3:37:44 PM #27 Phase 78 File dlgbrnst.cpp, Line 1762
Data verification started

3:37:47 PM #28 Text 0 File ThreadedTransfer.cpp, Line 269
Pipe memory size 590400

3:41:51 PM #29 Phase 80 File dlgbrnst.cpp, Line 1762
Data verification completed successfully

3:41:53 PM #30 Text 0 File SCSIPTICommands.cpp, Line 261
SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME

3:41:59 PM #31 Text 0 File Cdrdrv.cpp, Line 11185
DriveLocker: UnLockVolume completed

3:41:59 PM #32 Text 0 File SCSIPTICommands.cpp, Line 424
UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL

Existing drivers:

Registry Keys:
HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)

This is normal and is an unavoidable results of the geometry of a CD/DVD.

Writing starts at the innermost track and ends at the outermost track, and the distance traveled in one rotation of the disc is approx 2.4 times larger at the outer track.

When spinning the disc at or near maximum RPM, a.k.a. Constant Angular Velocity (CAV), this means that the linear speed will start at some value and steadily rise to approx. 2.4 times that value.

Here’s another explanation with a schematic drawing:

CAV vs CLV capacity

thanks for the reply! :wink: really? it’s normal? then why do i feel that my drive has gotten significantly slower? I don’t think that it’s only my imagination…

the nero cd speed test…shows this

Log
Time Elapsed Action
[03:42:53] Drive: SONY DVD RW DW-Q30A YYS6
[03:42:53] Disc: Blank, 79:59.71, 97m27s66f
[03:42:56] Drive: SONY DVD RW DW-Q30A YYS6
[03:42:56] Disc: Blank, 79:59.71, 97m27s66f
[03:43:43] Starting write transfer rate test
[03:46:38] 2:55 Speed:19-43 X CAV (32.39 X average)

Yes, it is. Read DrageMester’s post again.

then why do i feel that my drive has gotten significantly slower? I don’t think that it’s only my imagination…
the nero cd speed test…shows this

[03:46:38] 2:55 Speed:19-43 X CAV (32.39 X average)

The log clearly shows that the max. speed was reached, so better use a clock than a felt write speed :slight_smile:

Ok then…thanks again! I guess i’m starting to see problems everywhere lately! :frowning:

LOL @ this thread. Sorry mate, it made me laugh.

Yes this is all perfectly normal. Try to think of it like this:

You have a bike. It’s final gear is a large one, and one turn of that will get you a certain amount of rotation of your wheel. Now the smallest gear needs more rotations to make the wheel spin. Basically if you rotated the smallest gear @ 8000RPM you would get a certain speed, but if you rotated the larger gear at the exact same RPM, would it be the same speed? No it would be much faster because of it’s physical size.

So the disc will spin @ say 9000RPM right from the start, you only get like 10 Megabytes per second, yet when it reaches the far edge of the disc, there is just more area to be read because that part of the disc is just physically bigger with a wider circumference and @ 9000RPM you are doing 22 or more Megabytes per second.

My explanation might not make any sense lol