What quality of analogue, be it VHS, SVHS or higher do you need to have before the MPEG2 codec begins to show its inherent quality limitation?
I hope this question makes sense.
Des
This question I think you are looking for is a bit different:
Mpeg2 is capable of superb quality that is related to the data rate not the input. If you take a VHS tape and end code it with Mpeg 2 at 10:1 compression you will have excellent quality.
Also with Mpeg 2 you have a system where the encoding task is more complex than the decoding task so the actually quality of the encoder is important.
For example Sony BetaSX uses Mpeg2 at 10x and is full broadcast capable. 10X compression in M-jpeg would be closer to VHS quality.
John Ferrick
So if I edited something digital and compared it to that same file also saved to MPEG2 would I see a difference?
Des