What compression scheme is dish using on the 622? I notice that my ota recordings have shrunk in file size. I also notice that my total recording time fluctuates. I was able to estimate before how much time I had available when recording the mpeg 4 channels as they compressed easier than the mpeg 2 channels. Now with this software 443, even the mpeg 2 and ota hd channels compress to smaller sizes than the mpeg 4 channels ever did before. I miss the history menu as I could tell if my protected programs were being deleted. now I believe that none of my programs are being deleted at this time. How can this be so unless Dish has changed their compression? VC1?
622 compression scheme?
- Thread starter coug7669
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Your OTA recordings shouldn't have changed at all. They're still MPEG2 and when they're recorded, they're recorded 100% as-is. Dish receivers do not do add'l compression on recordings (TiVos do, for example).
Digital OTA data size depends on whether the local is sending standard definition or HD for a particular show and what compression level they have chosen. As hall said, OTA is always MPEG2 and both OTA and satellite go straight to the hard drive as is.
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OTA data rates vary widely and typically depend on how many subchannels their are. An HD channel usually takes up 4-5 times the bandwidth of an SD channel.
All DVRs that can record digital, whether digital cable, OTA or satellite, record the data stream direct to the hard drive.
