root@eric-laptop:/home/eric# sh /usr/share/doc/libdvdread3/examples/
sh: Can't open /usr/share/doc/libdvdread3/examples/

cdrecord -prcap -dev=/dev/cdrom | less

eric@eric-laptop:~$ cdrecord -v speed=2 dev=/dev/cdrom -data bigimage.iso
wodim: No write mode specified.
wodim: Assuming -tao mode.
wodim: Future versions of wodim may have different drive dependent defaults.
TOC Type: 1 = CD-ROM
wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.
scsidev: '/dev/cdrom'
devname: '/dev/cdrom'
scsibus: -2 target: -2 lun: -2
Linux sg driver version: 3.5.27
Wodim version: 1.1.10
SCSI buffer size: 64512
Device type : Removable CD-ROM
Version : 5
Response Format: 2
Capabilities :
Vendor_info : 'Slimtype'
Identification : 'DVD A DS8A3S '
Revision : 'HP53'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
wodim: Cannot load media with this drive!
wodim: Try to load media by hand.
Current: 0x0000 (Reserved/Unknown)
Profile: 0x002B (DVD+R/DL)
Profile: 0x001B (DVD+R)
Profile: 0x001A (DVD+RW)
Profile: 0x0016 (DVD-R/DL layer jump recording)
Profile: 0x0015 (DVD-R/DL sequential recording)
Profile: 0x0014 (DVD-RW sequential recording)
Profile: 0x0013 (DVD-RW restricted overwrite)
Profile: 0x0012 (DVD-RAM)
Profile: 0x0011 (DVD-R sequential recording)
Profile: 0x0010 (DVD-ROM)
Profile: 0x000A (CD-RW)
Profile: 0x0009 (CD-R)
Profile: 0x0008 (CD-ROM)
Profile: 0x0002 (Removable disk)
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Beginning DMA speed test. Set CDR_NODMATEST environment variable if device
communication breaks or freezes immediately after that.
FIFO size : 12582912 = 12288 KB
wodim: No such file or directory. Cannot open 'bigimage.iso'.

both my dvd drive and disk are all good, vlc reply can not find /dev/sr0 when I tried to play it, please help