Like other storage media optical media may fall victim to data loss.
Blue-Ray Disc BD ROM
Magneto Optical Disc MOD
The most common hardware defect is a scratched surface which may not be visible to the naked eye. In an unfavourable spot (e.g. from the outer to the inner edge) a scratch will cause immediate data loss.
Optical media are extremely sensitive to solar radiation and unsteady temperature. Due to minimal chemical changes inside the coating data loss can be caused. Nevertheless, successful data rescue is still possible in most cases.
We reiceive broken optical media regularly. Reconstructing these takes huge efforts and take up several months of work.
The most common cause for data loss from optical media is not ending a session properly, which means the burning process is not completed. The media seems to be fully occupied but no files are shown. It can also occur that only a tiny bit of the capacity is shown as a maximum. In these cases the data is still there, but getting to it is a very complex process and only possible if you have special hardward at hand. Attingo uses specifically manipulated CD, DVD and BluRay drives for that.
People tend to forget checking if all files are on the media after a burning process. It often happens that some files are left out during the process. This can be due to large file size or non-standardised file names. If you don't check the media immediately you may think the data got lost in the course of tim.
With rewritable media it's possible to delete data. If you want to restore the deleted files it works the same way as with hard drives, but it's more challenging, because the drives forbid access after deleting and specifically manipluated drives have to be used. You also have to keep in mind that rewritable optical media can only be written on from the beginning to the end and files are physically present until they are overwritten.
Contact us if you experienced data loss. Give us a call if you have you need an emergency data rescue which has to be performed as fast as possible.
After the diagnosis is finished you receive a fixed price offer. We'll be happy to advise you on our different diagnosis options.
Defective optical media will neither be sent abroad nor to third-party providers. The data rescue will be solely performed in our in-house clean rooms.