dvdisaster Version 0.70 | To the Internet version

Contents

Overview
Examples and screen shots
· | Scanning media for errors
· | Creating error correction data
· | Reading defective media
· | Recovering media images
· | Getting information about images and error correction data
· | Configuration
| - | General
| - | Reading
| - | Error correction/files
| - | Error correction/images
· | Command syntax
Download
Questions and Answers
Background information

### Error correction settings

More information on this form follows down this page.

Selection of error correction method

Select "Error correction file (RS01)" to store the error correction data in a separate file.

Redundancy for new error correction files

The redundancy specifies the amount of correctable errors in the best case. Since the ideal case is rare, it is recommended to apply a reasonable margin when selecting the redundancy:

(1) / (2) The presets normal and high provide a redundancy of 14.3% and 33.5%, respectively. They invoke optimized program code to speed up the error correction file creation.

(3) Specify the redundancy by percent. Please note:

- An error correction file with x% redundancy will be approximately x% of the size of the corresponding image file.
- The error correction capability depends on the statistical distribution of read errors. Only changes by 5 percentage points and more may have a recognizable effect on the error correction.

(4) Give the maximum size of the error correction file in MB. dvdisaster will choose a suitable redundancy setting so that the overall size of the error correction file does not exceed the given limit.

Advance notice: When using the same size setting for images of vastly different size, more error correction information is allotted to the smaller images and less to the larger ones.

Memory utilization

dvdisaster optimizes access to the image and error correction files by maintaining its own cache. The preset of 32MB is suitable for most systems.

Copyright 2004-2008 Carsten Gnörlich. Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.