Hello, everyone, I am running FreeBSD 6.0-stable and LOVING every second of it. 
However, my CD burning capabilities have been stymied by an unknown problem 
which I cannot fix, let alone diagnose. I am attempting to burn a cd using 
SCSI-emulation, which is correctly set up, using cdrecord. The exact command 
used is 'cdrecord dev=1,0,0 data_cd.iso'. However, here is the output of that 

cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent 
cdrecord: Continuing in 5 seconds...
Cdrecord-Clone 2.01 (i386-unknown-freebsd6.0) Copyright (C) 1995-2004 Jörg 
cdrecord: Operation not permitted. WARNING: Cannot do mlockall(2).
cdrecord: WARNING: This causes a high risk for buffer underruns.
scsidev: '1,0,0'
scsibus: 1 target: 0 lun: 0
Using libscg version 'schily-0.8'.
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   :
Vendor_info    : 'TOSHIBA '
Identifikation : 'DVD-ROM SD-R2212'
Revision       : '1913'
Device seems to be: Generic mmc2 DVD-ROM.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R96R
cdrecord: Cannot load media.

When I perform a dmesg command, here is the output (Repeat each one of those 
about 15 times, and that's it): 

acd0: CDRW <TOSHIBA DVD-ROM SD-R2212/1913> at ata1-master PIO4
cd0 at ata1 bus 0 target 0 lun 0
cd0: <TOSHIBA DVD-ROM SD-R2212 1913> Removable CD-ROM SCSI-0 device
cd0: 16.000MB/s transfers
cd0: cd present [358446 x 2048 byte records]
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x15 ascq=0x00 error=0
g_vfs_done():acd0[READ(offset=627879936, length=4096)]error = 5
acd0: FAILURE - TEST_UNIT_READY MEDIUM ERROR asc=0x57 ascq=0x00 error=0
g_vfs_done():acd0[READ(offset=32768, length=2048)]error = 5

I have googled and searched through FAQ's but can find no information regarding 
this problem. If anyone could give me some help or just point me in the right 
direction I would me most grateful. Thank you in advance.
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