... , single sided DVD is capable of holding 4.7 gigabytes of information which is roughly the size of an averageTwo ... audio. Blu-ray disc can also hold up to 27 gigabytes of computer data. Blu-ray disc presents a clear ... Single layer Blu-ray disc can hold up to 27 gigabytes of data. This is more than two hours of ... Double layer Blu-ray disc can store up to 50 gigabytes of data. This can hold about 4.5 hours ...