Nicg, not too sure about the DVD-RAM... unless the mfg'rs are thinking that everyone has the bank account of your run-of-the-mill millionaire, I suspect the mfg'rs are really talking cache memory.
Case in point. Encoded MPEG-2 for NTSC (30fps) is minimal 210Mbps. Alternately, for 1 second of uncompressed video info is approx 30MB (640x480) or 80MB (1280x720). A Gig of RAM will store approx 10-30 seconds of video data. You do the math - then multiply the total GB/TB by the cost per GB of RAM and you roughly estimate the max amount of RAM needed to store your video data... Oh yeah, dont forget to add room for audio.
One can easily begin to understand why digitally compressed audio/video is the only realistic choice for consumer.
P2E
Quote:
| Originally Posted by nicg Several ads seem to say that if your DVD recorder will record on DVD-RAM that you can record and watch TV at the same time and fast forward past the commercials. Am I reading these ads correctly? The Pansonic DMR-ES10S at about $199 will record on DVD-RAM. There are DVD recorders that also have 60 and more gigabite hard drives.I guess this is not a requirement to record and watch simultaneously? This Pansonic will also record DVD-R and there are these DVD's available for about 50 cents for about 4.5 GB. So 80GB could be stored for about $10. I guess storing on a hard drive might be more convenient; until the hard drive was full. Is there another advantage to the hard drive? |