kern/52720: can't write iso file to dvdrw media with atapi drive using dvdrecord

[kosaki1_kta%ybb.ne.jp@localhost]

>Number:         52720
>Category:       kern
>Synopsis:       can't write iso file to  dvdrw media with atapi drive  using dvdrecord
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 11 05:05:00 +0000 2017
>Originator:     kotaro kosaki
>Release:        NetBSD 8.99.6
>Organization:
>Environment:
NetBSD phnm1 8.99.6 NetBSD 8.99.6 (GENERIC) #0: Fri Nov 10 21:05:04 JST 2017  /mnt3/udd4/amd64/obj/sys/arch/amd64/compile/GENERIC amd6
>Description:
with NetBSD kernel newer than NetBSD 8.99.4

dvdrecord: Warning: using inofficial version of libscg (bero-0.5a '@(#)scsit$
dvdrecord: Warning: using inofficial libscg transport code version (frueauf-$
atapi: 1
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   :
Vendor_info    : 'PIONEER '
Identifikation : 'DVD-RW  DVR-111 '
Revision       : '1.29'
Device seems to be: Generic mmc2 DVD.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags   : SWABAUDIO BURNFREE
Supported modes: PACKET SAO
Drive buf size : 1605632 = 1568 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data  628 MB
Total size:     721 MB (71:29.52) = 321714 sectors
Lout start:     721 MB (71:31/39) = 321714 sectors
Current Secsize: 2048
  ATIP start of lead in:  -150 (00:00/00)
Disk type:    unknown dye (reserved id code)
Manuf. index: -1
Manufacturer: unknown (not in table)
Blocks total: 2298496 Blocks current: 2298496 Blocks remaining: 1976782
Starting to write CD/DVD at speed 4 in write mode for single session.
Last chance to quit, starting real write in 0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
trackno=0
BURN-Free is ON.
Performing OPC...
Sending CUE sheet...
dvdrecord: WARNING: Drive returns wrong startsec (0) using -150
Starting new track at sector: 0
Track 01: 628 of 628 MB written (fifo 100%).
Track 01: Total bytes read/written: 658870272/658870272 (321714sectors).
Fixating...
Fixating time:   16.347s   
dvdrecord: fifo had 10724 puts and 10724 gets.
dvdrecord: fifo was 12 times empty and 132 times full, min fill was 0%.
Writing  time:   11.461s


mount -t cd9660  /dev/cd0a /mnt/cdrom
mount_cd9660: /dev/cd0a on /mnt/cdrom: Invalid argument
>How-To-Repeat:

make iso file  and burn with atap dvdrw drive using  dvdrecord
>Fix: