short description:
This file documents my tests of dvd+rw-format (version 7.1)
performed on DVD-RW disc.


I used two commands:
 - dvd+rw-format -force /dev/scd0
 - dvd+rw-format -blank /dev/scd0
on DVD-RW disc in 'Sequential' and in 'Restricted Overwrite' modes.
Commands were used without '=full' suboption.

Summary of results is following:
1. 'DVD-RW Seq' -> dvd+rw-format -force /dev/scd0 -> 'DVD-RW Res'
2. 'DVD-RW Res' -> dvd+rw-format -force /dev/scd0 -> 'DVD-RW Res'
3. 'DVD-RW Res' -> dvd+rw-format -blank /dev/scd0 -> 'DVD-RW Seq'
4. 'DVD-RW Seq' -> dvd+rw-format -blank /dev/scd0 -> 'DVD-RW Seq'

All commands completed in less than 60 seconds. I guess that
(in combination with missing '=full' option) it means that this
was blanking in 'fast' mode.

After every run of 'dvd+rw-format' I also called 'dvd+rw-mediainfo /dev/scd0'.
All results are below.





1.
disc mode before: DVD-RW Sequential

performed test:
"
time dvd+rw-format -force /dev/scd0
* BD/DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 7.1.
* 4.7GB DVD-RW media in Sequential mode detected.
* formatting 100.0-

real    0m54.774s
user    0m0.000s
sys     0m0.000s
"


notes: 
at the beginning percentage value (after "formatting") was 0.0 for 
few seconds, but it started to grow rapidly to stop at 100.0. After that 
it stayed at 100.0, and the program didn't return. After few seconds the
program returned.

disc mode after: DVD-RW Restricted Overwrite


---------------------
dvd+rw-mediainfo /dev/scd0
INQUIRY:                [ASUS    ][DRW-2014L1T     ][1.00]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         13h, DVD-RW Restricted Overwrite
 Media ID:              CMCW04
 Current Write Speed:   6.0x1385=8310KB/s
 Write Speed #0:        6.0x1385=8310KB/s
 Write Speed #1:        4.0x1385=5540KB/s
 Speed Descriptor#0:    00/2297887 R@8.0x1385=11080KB/s W@6.0x1385=8310KB/s
 Speed Descriptor#1:    00/2297887 R@8.0x1385=11080KB/s W@4.0x1385=5540KB/s
READ DVD STRUCTURE[#10h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Legacy lead-out at:    2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
 Media Book Type:       33h, DVD-RW book [revision 3]
 Last border-out at:    2045*2KB=4188160
READ DISC INFORMATION:
 Disc status:           appendable
 Number of Sessions:    1
 State of Last Session: incomplete
 "Next" Track:          1
 Number of Tracks:      1
READ FORMAT CAPACITIES:
 no media:              4101552*2048=8399978496
 00h(800):              2297888*2048=4706074624
 10h(10):               2297888*2048=4706074624
 15h(10):               2297888*2048=4706074624
READ TRACK INFORMATION[#1]:
 Track State:           invisible incremental
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           2297888*2KB
 Fixed Packet Size:     16*2KB
 Track Size:            2297888*2KB
READ CAPACITY:          0*2048=0
---------------------




2.
disc mode before: DVD-RW Restricted Overwrite

performed test:
"
time dvd+rw-format -force /dev/scd0
* BD/DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 7.1.
* 4.7GB DVD-RW media in Restricted Overwrite mode detected.
* formatting 100.0/

real    0m53.591s
user    0m0.000s
sys     0m0.000s
"


notes: 
program behaved exactly the same as in point 1.

disc mode after: DVD-RW restricted Overwrite


---------------------
dvd+rw-mediainfo /dev/scd0
INQUIRY:                [ASUS    ][DRW-2014L1T     ][1.00]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         13h, DVD-RW Restricted Overwrite
 Media ID:              CMCW04
 Current Write Speed:   6.0x1385=8310KB/s
 Write Speed #0:        6.0x1385=8310KB/s
 Write Speed #1:        4.0x1385=5540KB/s
 Speed Descriptor#0:    00/2297887 R@8.0x1385=11080KB/s W@6.0x1385=8310KB/s
 Speed Descriptor#1:    00/2297887 R@8.0x1385=11080KB/s W@4.0x1385=5540KB/s
READ DVD STRUCTURE[#10h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Legacy lead-out at:    2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
 Media Book Type:       33h, DVD-RW book [revision 3]
 Last border-out at:    2045*2KB=4188160
READ DISC INFORMATION:
 Disc status:           appendable
 Number of Sessions:    1
 State of Last Session: incomplete
 "Next" Track:          1
 Number of Tracks:      1
READ FORMAT CAPACITIES:
 no media:              4101552*2048=8399978496
 00h(800):              2297888*2048=4706074624
 10h(10):               2297888*2048=4706074624
 15h(10):               2297888*2048=4706074624
READ TRACK INFORMATION[#1]:
 Track State:           invisible incremental
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           2297888*2KB
 Fixed Packet Size:     16*2KB
 Track Size:            2297888*2KB
READ CAPACITY:          0*2048=0
---------------------




3.
disc mode before: DVD-RW Restricted Overwrite

performed test:
"
time dvd+rw-format -blank /dev/scd0
* BD/DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 7.1.
* 4.7GB DVD-RW media in Restricted Overwrite mode detected.
* blanking 100.0|

real    0m48.775s
user    0m0.000s
sys     0m0.000s
"


notes:
program behaved exactly the same as in 1. and 2.

disc mode after: DVD-RW Sequential


---------------------
dvd+rw-mediainfo /dev/scd0
INQUIRY:                [ASUS    ][DRW-2014L1T     ][1.00]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         14h, DVD-RW Sequential
 Media ID:              CMCW04
 Current Write Speed:   6.0x1385=8310KB/s
 Write Speed #0:        6.0x1385=8310KB/s
 Write Speed #1:        4.0x1385=5540KB/s
 Speed Descriptor#0:    00/2297887 R@8.0x1385=11080KB/s W@6.0x1385=8310KB/s
 Speed Descriptor#1:    00/2297887 R@8.0x1385=11080KB/s W@4.0x1385=5540KB/s
READ DVD STRUCTURE[#10h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Legacy lead-out at:    2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
 Media Book Type:       33h, DVD-RW book [revision 3]
 Last border-out at:    2045*2KB=4188160
READ DISC INFORMATION:
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 "Next" Track:          1
 Number of Tracks:      1
READ FORMAT CAPACITIES:
 unformatted:           2297888*2048=4706074624
 00h(800):              2297888*2048=4706074624
 10h(10):               2297888*2048=4706074624
 15h(10):               2297888*2048=4706074624
READ TRACK INFORMATION[#1]:
 Track State:           invisible incremental
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           2297888*2KB
 Track Size:            2297888*2KB
READ CAPACITY:          0*2048=0
---------------------




4.
disc mode before: DVD-RW Sequential

performed test:
"
time dvd+rw-format -blank /dev/scd0
* BD/DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 7.1.
* 4.7GB DVD-RW media in Sequential mode detected.
* blanking 100.0/

real    0m50.178s
user    0m0.000s
sys     0m0.004s
"


notes:
program behaved exactly the same as in 1., 2. and 3.

disc mode after: DVD-RW Sequential


---------------------
dvd+rw-mediainfo /dev/scd0
INQUIRY:                [ASUS    ][DRW-2014L1T     ][1.00]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         14h, DVD-RW Sequential
 Media ID:              CMCW04
 Current Write Speed:   6.0x1385=8310KB/s
 Write Speed #0:        6.0x1385=8310KB/s
 Write Speed #1:        4.0x1385=5540KB/s
 Speed Descriptor#0:    00/2297887 R@4.0x1385=5540KB/s W@6.0x1385=8310KB/s
 Speed Descriptor#1:    00/2297887 R@4.0x1385=5540KB/s W@4.0x1385=5540KB/s
READ DVD STRUCTURE[#10h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Legacy lead-out at:    2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
 Media Book Type:       33h, DVD-RW book [revision 3]
 Last border-out at:    2045*2KB=4188160
READ DISC INFORMATION:
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 "Next" Track:          1
 Number of Tracks:      1
READ FORMAT CAPACITIES:
 unformatted:           2297888*2048=4706074624
 00h(800):              2297888*2048=4706074624
 10h(10):               2297888*2048=4706074624
 15h(10):               2297888*2048=4706074624
READ TRACK INFORMATION[#1]:
 Track State:           invisible incremental
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           2297888*2KB
 Track Size:            2297888*2KB
READ CAPACITY:          0*2048=0
---------------------


