Recording formats and what they offer
AH the formats and systems covered in this appendix have tried to address one or more of the following requirements of the programme maker and broadcaster:
• compact size;
• relatively low cost;
• faster transfer rates;
• future proof, e.g. widescreen capable.
Digi-Betacam is presently Sony’s flagship recording technology. The system uses a discrete cosine transform (DCT) process with bit rate reduction (BRR). This sounds very technical but in essence this technology provides very high quality images while using a small degree of compression (2:1). On the high end systems dual aspect ratios are supported: 4:3 and 16:9. Widescreen is an interesting aspect with digital technology ...