I have 370 GB of storage in my computer between two hard drives. It took me a long time to get to this point, and up to a year ago, the biggest hard drive I owned was 80 gigs.

Well, now TDK is working on a Blu-ray disc that will back up my hard drive on two discs. For comparison it would take around 86 DVD’s to back up my hard drive, or 671 CD’s.

If successful, the company’s R&D team will produce a disc with four times the capacity of today’s biggest BDs and double the size of protoype next-generation BD-Rs TDK has already shown off. TDK unveiled a 100GB prototype in May 2005, which contained four data-storage layers, is recordable and supports a write speed of up to 216Mbps, double that of 50GB BD-Rs.