|
|
Recovering media images |
|
Walkthrough |
Please make sure that dvdisaster has been configured as described in the
basic settings section.
Then perform the following steps:
|
|
Insert the defective medium into a drive
which is directly connected to your computer. You can not use network drives,
software drives and drives inside virtual machines. |
|
|
Close any windows which may be opened by your operating system
for viewing or performing the medium contents.
Wait until the drive has recognized the medium and the medium has spun down. |
|
|
Select the drive containing the defective medium
in dvdisasters drop down menu. |
|
|
Click the "Read" button to start the reading process. |
| |
Watch the reading process progress.
The adaptive reading strategy performs a systematic search for readable
sectors. You will observe temporary gaps which will be closed in later
stages. Usually this effect is less pronounced as shown in the screen shot. If all defective
sectors are located at the end of the medium the reading process may even stop before touching
the first defective sector.
|
| |
The next actions depend on the outcome of the reading process.
The reading process terminates automatically when enough data for a successful recovery
has been gathered (compare the output marked in green). In that case continue the recovery
by clicking on the "Fix" button as described below.
|
| |
The reading process will also abort if it could not find enough readable sectors
(see the output marked in red). The image is not yet recoverable in this incomplete state.
Please try to gather additional data following the tips shown in
advanced settings.
|
|
| |
|
|
Click the "Fix" button to begin the
image recovery (works only if the above reading process stated success!). |
|
| |
| |
Watch the progress of the recovery. The adaptive reading will stop as soon
as enough data has been collected for a successful recovery; therefore the error correction will
always be loaded to the max. This causes the display of the massive red area in the "Errors/Ecc block"
graph and is no cause for worry. Depending on the medium size and your system speed the recovery may take
several minutes to hours.
|
|
|
After the recovery finishes all data in the ISO image will be complete again.
|
|
|
Now you have created a new medium containing the fully recovered data.
Make sure to check it for read errors.
Then you can discard the defective medium and delete the ISO image. However if you have created
an error correction file for the old medium then you can keep it to protect the newly
created medium.
|
|