Clearly there's a mismatch between what the drive reports and what it can actually do, and growisofs can detect the 2X capability.
I have done the math, it's clear that the write is really running 2X. I attached the -prcap output to preserve the format if it's vital.
-- E. Robert Bogusta It seemed like a good idea at the time
scsidev: '0,0,0' scsibus: 0 target: 0 lun: 0 Linux sg driver version: 3.1.24 Cdrecord 2.01a15 (i686-pc-linux-gnu) Copyright (C) 1995-2003 J�rg Schilling Using libscg version 'schily-0.7' Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'PIONEER ' Identifikation : 'DVD-RW DVR-104 ' Revision : '1.40' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Drive capabilities, per MMC-3 page 2A: Does read CD-R media Does write CD-R media Does read CD-RW media Does write CD-RW media Does read DVD-ROM media Does read DVD-R media Does write DVD-R media Does not read DVD-RAM media Does not write DVD-RAM media Does support test writing Does read Mode 2 Form 1 blocks Does read Mode 2 Form 2 blocks Does read digital audio blocks Does restart non-streamed digital audio reads accurately Does support Buffer-Underrun-Free recording Does read multi-session CDs Does read fixed-packet CD media using Method 2 Does not read CD bar code Does not read R-W subcode information Does read raw P-W subcode data from lead in Does return CD media catalog number Does return CD ISRC information Does not support C2 error pointers Does not deliver composite A/V data Does play audio CDs Number of volume control levels: 256 Does support individual volume control setting for each channel Does support independent mute setting for each channel Does not support digital output on port 1 Does not support digital output on port 2 Loading mechanism type: tray Does support ejection of CD via START/STOP command Does not lock media on power up via prevent jumper Does allow media to be locked in the drive via PREVENT/ALLOW command Is not currently in a media-locked state Does not support changing side of disk Does not have load-empty-slot-in-changer feature Does not support Individual Disk Present feature Maximum read speed: 4233 kB/s (CD 24x, DVD 3x) Current read speed: 4233 kB/s (CD 24x, DVD 3x) Maximum write speed: 1411 kB/s (CD 8x, DVD 1x) Current write speed: 1411 kB/s (CD 8x, DVD 1x) Rotational control selected: CLV/PCAV Buffer size in KB: 2000 Copy management revision supported: 1 Number of supported write speeds: 2 Write speed # 0: 1411 kB/s CLV/PCAV (CD 8x, DVD 1x) Write speed # 1: 705 kB/s CLV/PCAV (CD 4x, DVD 0x)
