cdrecord-2.01.01a18: MMC-3 speed select did not work.

[Giulio Orsero <giulioo@gmail.com>]

linux-2.4.32
LG USB GSA-E10L (HL-DT-ST DVDRAM GSA-E10L LE05)
4x DVD+RW
cdrecord -data padsize=512s -v driveropts=burnfree -sao iso=/path/iso.iso

I upgraded to cdrecord-2.01.01a18 (from cdrecord-2.01.01a09) and some new
error/warning messages started appearing.
The burning process seems to be ok, but they look ugly.
Should I worry? Should I ignore them?

See various "input/output error", "CDB", "status:".... 

Linux sg driver version: 3.1.25
SCSI buffer size: 64512
cdrecord: Input/output error. get performance: scsi sendcmd: no error    
CDB:  AC 00 00 00 00 00 00 00 00 64 03 00                
status: 0x0 (GOOD STATUS)                       
cmd finished after 0.004s timeout 200s
Cdrecord-ProDVD-Clone 2.01.01a18 (i686-pc-linux-gnu) Copyright (C) 1995-2006
Jörg Schilling
TOC Type: 1 = CD-ROM
Using libscg version 'schily-0.8'.
Driveropts: 'burnfree'
...
...
Drive buf size : 1114112 = 1088 KB
Drive pbuf size: 1966080 = 1920 KB
Drive DMA Speed: 6490 kB/s 36x CD 4x DVD
FIFO size      : 4194304 = 4096 KB
cdrecord: Input/output error. get performance: scsi sendcmd: no error
CDB:  AC 00 00 00 00 00 00 00 00 64 03 00
status: 0x0 (GOOD STATUS)
cmd finished after 0.004s timeout 100s
cdrecord: MMC-3 speed select did not work.
cdrecord: Input/output error. get performance: scsi sendcmd: no error
CDB:  AC 00 00 00 00 00 00 00 00 64 03 00
status: 0x0 (GOOD STATUS)
cmd finished after 0.004s timeout 100s
cdrecord: Input/output error. get performance: scsi sendcmd: no error
CDB:  AC 00 00 00 00 00 00 00 00 64 03 00
status: 0x0 (GOOD STATUS)
cmd finished after 0.004s timeout 100s
cdrecord: MMC-3 speed select did not work.
Track 01: data     1 MB         padsize:    1 MB
Total size:        2 MB = 1509 sectors
Current Secsize: 2048
Trying to clear drive status.

Thanks
-- 
giulioo@pobox.com