dvdisaster(1)

1DVDISASTER(1)             protection for CD/DVD media            DVDISASTER(1)
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NAME

6       DVDISASTER - data loss/scratch/aging protection for CD/DVD media
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SYNOPSIS

10       dvdisaster  [-r|-c|-f|-s|-t|-u]  [-d device] [-p prefix] [-i image] [-e
11       eccfile] [--list] [-j n] [-n n%] [-m n] [-v] [--adaptive-read] [--auto-
12       suffix] [--cache-size n] [--dao] [--fill-unreadable n] [--query-size n]
13       [--speed-warning n] [--spinup-delay n] [--split-files]
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DESCRIPTION

17       DVDISASTER provides a margin of safety against data loss on CD and  DVD
18       media  caused  by scratches or aging media. It creates error correction
19       data which is used to recover unreadable sectors if  the  disc  becomes
20       damaged at a later time.
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TYPICAL USAGE

24       dvdisaster -d /dev/hdc -s
25              Scans the medium in drive /dev/hdc for errors.
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27       dvdisaster -d /dev/hdc -i medium.iso -r
28              Reads an image from drive /dev/hdc into the file medium.iso.
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30       dvdisaster -d /dev/hdc -i medium.iso -e corr.ecc -r --adaptive-read
31              Uses  the  adaptive reading strategy to read an image from drive
32              /dev/hdc into the  file  medium.iso.   Reading  will  stop  when
33              enough  data  has  been  gathered  to repair the image using the
34              error correction file corr.ecc.
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36       dvdisaster -i medium.iso -e corr.ecc -c
37              Creates  an  error  correction  file  corr.ecc  for  the   image
38              medium.iso.
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40       dvdisaster -i medium.iso -mRS02 -n 350000 -c
41              Augments the image medium.iso with error correction information,
42              expanding the image to no more than 350000  sectors.  If  -n  is
43              omitted  the  image  will  be  expanded to the smallest possible
44              medium size (CD, DVD, DVD9).  Note the missing blank between  -m
45              and RS02.
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47       dvdisaster -i medium.iso -e corr.ecc -f
48              Repairs  the  image  file  medium.iso using the error correction
49              file corr.ecc.
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51       dvdisaster -i medium.iso -e corr.ecc -t
52              Verifies the image medium.iso with information  from  the  error
53              correction file corr.ecc.
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55       NOTE:  Omit  the -e corr.ecc options when working with augmented images
56              in the examples above.
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OPTIONS

60       Action selection (at least one action must be specified):
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62       -r, --read
63              Read the medium image to hard disc. Use -rn-m to read a  certain
64              sector range, e.g. -r100-200.
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66       -c, --create
67              Create .ecc information for the medium image.
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69       -f, --fix
70              Try to fix medium image using .ecc information.
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72       -s, --scan
73              Scan the medium for read errors.
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75       -t, --test
76              Test integrity of the .iso and .ecc files.
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78       -u, --unlink
79              Delete .iso files (when other actions complete).
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81       Drive and file specification:
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83       -d, --device device
84              read from given device (default: /dev/cdrom).
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86       -p, --prefix prefix
87              prefix of .iso/.ecc file (default: medium.* ).
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89       -i, --image imagefile
90              name of image file (default: medium.iso).
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92       -e, --ecc eccfile
93              name of parity file (default: medium.ecc).
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95       --list lists available drives for the ASPI driver (Windows only).
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97       Tweaking options (see manual before using!):
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99       -j, --jump n
100              jump n sectors forward after a read error (default: 16).
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102       -n, --redundancy n%
103              sets redundancy for error correction (default: 14.3%).
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105       -m, --method n
106              lists/selects error correction methods (default: RS01).
107              Possible values are RS01 and RS02.
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109       -v, --verbose n%
110              more diagnostic messages
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112       --adaptive-read
113              use optimized strategy for reading damaged media.
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115       --auto-suffix
116              automatically add .iso and .ecc file suffixes.
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118       --cache-size n
119              image cache size in MB during -c mode (default: 32MB).
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121       --dao  assume DAO disc; do not trim image end.
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123       --fill-unreadable n
124              fill unreadable sectors with byte n
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126       --query-size n
127              queries  drive  or filesystem on medium for image size (default:
128              ecc)
129              Possible values are: drive udf ecc
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131       --speed-warning n
132              print warning if speed changes by more than n percent.
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134       --spinup-delay n
135              wait n seconds for drive to spin up.
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137       --split-files
138              split image into files <= 2GB.
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AUTHOR

146       DVDISASTER was written by Carsten Gnoerlich <carsten@dvdisaster.com>.
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148       This  manual  page  was  written by Daniel Baumann <daniel.baumann@pan‐
149       thera-systems.net>, for the Debian project (but may be used by others).
150       It was enhanced for V0.70 by Carsten Gnoerlich.
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1540.70                              2006-07-06                     DVDISASTER(1)

NAME

SYNOPSIS

DESCRIPTION

TYPICAL USAGE

OPTIONS

SEE ALSO

AUTHOR