Recovering WordNet data for Libor interest rate rigging scandal…
Following many months burning the candle at both ends, Data Recovery Specialists have finally managed to reverse engineer files from the analogue voice recording system WordNet. This is important because these ‘legacy’ files are instrumental in forthcoming investigations into Libor interest rate rigging claims.
WordNet is a voice logging system which was traditionally used to record telephone conversations for investment banks. The analogue system recorded call catalogues and audio data to DDS data cartridges. Both DDS and WordNet are now end-of-life and the major banks are struggling to acquire these recordings for the Courts. Until now these have remained inaccessible, but Data Recovery Specialists have managed to reverse engineer WordNet files, marrying metadata with audio files to integrate into the next generation of voice loggers.
Managing Director of Data Recovery Specialists and expert in DDS and WordNet tape formats Tony Pitter says “This has really challenged us. Reverse engineering WordNet voice recordings and converting from analogue to digital format has been a difficult task. All credit to our data recovery research team who have been working very hard over the last few months. This opens up the way to recover other voice recording files from Guardian, Dictaphone and NICE.”
The major banks have archives running into thousands of tapes over decades of use and these are simply collecting dust – but not for much longer. Data Recovery Specialists are receiving orders to convert the data and their schedule of work is set well into next year already. The solution offered ensures that there is no loss of sound quality and metadata such as caller id, extension, duration and date, can all be output in a single voice log file. This is important so that investigators are able to search for specific keywords or dates that might be pertinent to the claim.
And that is not all. Data Recovery Specialists have also developed proprietary tools that can recover files from badly damaged or degraded media. By comparing checksums and error correction codes unique to DDS formats, they can identify damage and rebuild bytes and blocks of data.
Given the amount of work that this has generated, Data Recovery Specialists have quadrupled the size of their data recovery laboratory. Similarly they are applying their knowledge of computer forensics and the ACPO guidelines for electronic evidence, to make sure that data recovered is admissible in the event of legal proceedings.