dvdisaster Version 0.72 | To the Internet version

Contents

News
Overview
Howtos
· | The big picture
· | Scanning media for errors
· | Putting error correction data on a separate file
· | Putting error correction data on the medium
| - | Decision help
| - | Basic settings
| - | Creating the medium
| - | Advanced settings
· | Recovering media images
· | Getting information about images and error correction data
· | Testing image compatibility
· | Dialogs and buttons
Download
Questions and Answers
Bug reporting

Augmenting images with error correction data |
Walkthrough

dvdisaster is specialized in working with error correction data and reading of defective media. Creating ISO or UDF images and writing them to a medium is a totally different business, and also bears high complexity. We do not want to re-invent medium writing in dvdisaster. Instead we continue using the CD/DVD/BD writing software which you have got when purchasing your drive.

|  | First create an ISO image using your CD/DVD/BD writing software. Select the files you want to write to medium, but do not start the writing process yet. Instead, create an ISO image on your hard disk. Click on the image to the left to see a detailed walk-thorugh.

|  | When you have prepared the image switch over to dvdisaster. Make sure that it has been configured as described in the basic settings.

|  | Select the directory and file name of the ISO image which you have just created.

|  | Augment the image with error correction data by clicking on the "Create" button.

|  | Please wait while the error correction data is created. This may take a while depending on the image size and the available free space on the medium. Processing a DVD image with about 20-30% free space should take about 5-10 minutes on recent hardware.

Please note: dvdisaster does not create a new image, but will rather augment the existing one. Look at the image in the file manager before and after processing it with dvdisaster and note how its size increases.
Screen shot: Comparing image sizes.

|  | Write the augmented ISO image on the medium. Select the augmented image in your writing software and start the writing process. Click on the screen shot to the left for a detailed example.

Detailed example: Writing the ISO image on the medium.

Select writing of the image. Now open your media writing software again. Invoke the mode for writing pre-existing .iso images on the medium.

Using K3b: Click on the highlighted field ("Burn CD image") in the main window.

Select image writing

Image selection. Select the image you have just created and augmented with dvdisaster.

Using K3b: Use the field marked in green to select the image file or enter its name directly.

Image selection

More settings. Select the "DAO" ("disk at once") writing mode if supported by your drive. This improves the compatibility between the medium and the error correction. In addition this prevents you from accidentally adding more sessions to the disc which would destroy the error correction data.

Using K3b: Choose "DAO" in the field marked yellow.

More settings

Writing the medium. Now start the writing process.

Using K3b: Click on the "Start" button in the window from the previous screen shot.

Writing the medium

|  | Finished! You have now created a CD which is protected by error correction code.

Related information

- Check whether the writing process has affected the error correction data.

  It is recommended to perform this test once every time you change to a new version (or vendor) of your media writing software to make sure that it interoperates well with dvdisaster.

Old documentation (V0.70)

Copyright 2004-2009 Carsten Gnörlich. Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.