Mac PVR Coming Soon
mgrochmal writes "One of the items bouncing around the rumor mills is EyeTV, a TiVo-like device for Apple computers. Made by El Gato Software, it hooks up to one of the Mac's USB ports and captures MPEG-1 video, with a choice between a VideoCD-compatible recording, or a higher quality recording. You can read about a preview build of it, as well as read a comparison between it and a TiVo." It doesn't come with a hard drive; and here I was, thinking I wouldn't fill up my new 160GB hard drive any time soon. Silly me.
Give me FireWire, please. MPEG-1 video quality isn't going to cut it on a Mac, I'm afraid.
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Cogito cogito, ergo cogito sum.
This doesn't make any sense. If the Macintosh is really the target platform for this, why didn't they use Firewire? All current Macs ship with Firewire (even the $799 G3 iMac).
Alas, MPEG-1`is a lousy format for PVR use of any quality. MPEG-2 only stores video as progressive scan. However, TV is broadcast as interlaced, where the even lines are captured 1/59.94th of a second off from the odd lines. The difference between fields includes half of the video compression information.
Since MPEG-1 can't store data like this, one of the two fields will have to be discarded before capturing. This means you'll lose half of the temporal information automatically. This will leave anything originally shot of film looking jerky on playback, and anything shot on video less "present."
Good PVR systems use MPEG-2, which can store fields. There are good MPEG-2 hardware cards for Mac, even, that they could use instead. Heck, a Dual G4 can encode MPEG-2 in software in significantly faster than real time with the DVD Studio Pro Codec.
My video compression blog
Well, I hate to break it to you, but this is not a rumor. See: http://www.elgato.com/eyeTV/index.html for more details.
This is why my brother is looking hard at buying an EyeTV. Course, he could also look for a solution with a DVD-burner built into it and a MPEG-2 encoder card, but that costs a lot more than the $200 he would be spending to add this to his exiting iMac + External DVD-burner setup.