If you get a similar message as the on in the picture below, please update your TachoSAFE Desktop PC application to the latest version and try to process the files until the message will no longer appear. You might have to restart the application several times until all bad files will be recorded as faulty.

Use this link for the update TachoSAFE Desktop latest version

Starting from version 3.0.0.26 there is a safety mechanism that prevents processing damaged files if they were already tried for processing and failed.

Note: We've got lot's of complaints that this might not solve the problem every time, so please send us the complete content  of the Tacho2SAFE device zipped and also the content of the data folder of the TachoSAFE application installation.