Quote:
Originally Posted by Andrewcrawford23
i believ teh tivo box will record in mpeg4 ie compress the mpeg2 signal i could be wrong but i am pretty sure that how t ogin ot work and that why it can record mroe than current v+ box if they had 1tb drive
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I'd be surprised if it did. The quality loss would be significant and would give Sky a huge selling point.
---------- Post added at 21:31 ---------- Previous post was at 21:18 ----------
Quote:
Originally Posted by mersey70
I thought the next generation of cable compression is DVB-C2 which isn't the same as MPEG4, much the same as DVB-T2 as used here isn't the same as MPEG4 DTT in Ireland.
Do any cable operators worldwide actually use MPEG4, I though DVB-C is mainly used but DVB-C2 is just being rolled out in Europe.
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You are getting compression (MPEG2, MPEG4) and data structure mixed up. DVB-C, DVB-C2, DVB-T etc define the structure of the data being sent. This data can be compressed using either MPEG 2 or MPEG 4.
Think of it this way. When you download something from the Internet, it is usually carried using TCP/IP packets (not always, but most downloads are). The hardware carrying the packets has no specific "knowledge" of what it is sending. That data can be an image, a web page, an application or whatever. The TCP/IP protocol does not care what is sent, merely that the data it has is sent to the correct address. DVB-C2 is like TCP/IP in this respect.
The compression defines what data is sent. That is sorted out by what happens to be at the end of the connection, be it a computer or cable box.