I have not seen any credible reports of how Toshiba HD players process the 1080p24 on the DVDs. There is a consensus (for what its worth) that the sequence is 1080p24 > 1080i60 > 1080p60. My guess is that 720p60 is scaled and deinterlaced from the 1080i60 format. There is also consensus that the 1080p24 format is taken directly from the DVD data because it in is better quality than 1080p60 on the A20, A30 and A35. The only 720p format available is the 720p60.
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Players are suppose to make accurate 1080i/60 or 1080p/60 frames from the 1080p/24 and 1080p/30 recorded on the disc. There is a wider range of performance within TVs, however. Its difficult to generalize when talking this kind of PQ detail, however, as each device has its own unique circuitry quirks (some brought on by cost considerations). Some devices attempt to “improve” the video instead of providing the most accurate translation. Also, the function of a chip is not always as advertised and each device may use a different chip set. Circuitry is typically proprietary, so we guess based on a trial and error process which also can be flawed. By the time one model is figured out, the next model is released
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We know that a player that takes 1080p/24 right off the HD disc and sends it to a display at 1080p/24 that displays it at 72hz, 96hz, or more with an even pull down and 1080p native resolution has the least chance of PQ error. There are few TV devices that do this. I know it works perfectly with an XA2 and pio 6010. If you want to be assured the best possible video accuracy and PQ, you need to spend at least that kind of money (although it doesn't guarantee you will notice any PQ difference).
I also know that when an XA2 takes 1080p/24 (or 30fps) off a HD disc, makes it into 1080i/60 and sends it to a pio 6010 which then extracts the 1080p/24 video and displays it at 72 hz, the identical PQ results in spite of the oportunity for error (the 6010 will display the 30fps at 60hz of course). I also know that substituting an XA1 has the same performance. Because of pio circuit quirks, it doesn't work well for a 1080p/60 signal and sometimes the pio TVs are a bit slow to pick up video cadence, but otherwise it works fine. I'm sure there are others, I just can't vouch for them. I think all the tosh HD players make 1080i/60 correctly, 1080p/60 may be an issue (for film, 1080i/60 has just as much resolution and PQ content as 1080p/60). You can't make these kinds of generalizations with every device.
Its a similar story with SD DVDs but with additional inconsistency and flaws in SD DVD recording, so the mileage varies from disc to disc as well as device to device (and scalling issues adds another dimention).
Now there are a wide variety of video cadence and encoding details in use around the world. It may be possible to find performance inconsistency in any device for some esoteric combination, but for the typical 3:2 or 2:2 pull down and interlace/de-interlace process, the above should hold true. The DVE HD test disc can point out some of these esoteric problems for you.
Players are suppose to make accurate 1080i/60 or 1080p/60 frames from the 1080p/24 and 1080p/30 recorded on the disc. There is a wider range of performance within TVs, however. Its difficult to generalize when talking this kind of PQ detail, however, as each device has its own unique circuitry quirks (some brought on by cost considerations). Some devices attempt to “improve” the video instead of providing the most accurate translation. Also, the function of a chip is not always as advertised and each device may use a different chip set. Circuitry is typically proprietary, so we guess based on a trial and error process which also can be flawed. By the time one model is figured out, the next model is released
We know that a player that takes 1080p/24 right off the HD disc and sends it to a display at 1080p/24 that displays it at 72hz, 96hz, or more with an even pull down and 1080p native resolution has the least chance of PQ error. There are few TV devices that do this. I know it works perfectly with an XA2 and pio 6010. If you want to be assured the best possible video accuracy and PQ, you need to spend at least that kind of money (although it doesn't guarantee you will notice any PQ difference).
I also know that when an XA2 takes 1080p/24 (or 30fps) off a HD disc, makes it into 1080i/60 and sends it to a pio 6010 which then extracts the 1080p/24 video and displays it at 72 hz, the identical PQ results in spite of the oportunity for error (the 6010 will display the 30fps at 60hz of course). I also know that substituting an XA1 has the same performance. Because of pio circuit quirks, it doesn't work well for a 1080p/60 signal and sometimes the pio TVs are a bit slow to pick up video cadence, but otherwise it works fine. I'm sure there are others, I just can't vouch for them. I think all the tosh HD players make 1080i/60 correctly, 1080p/60 may be an issue (for film, 1080i/60 has just as much resolution and PQ content as 1080p/60). You can't make these kinds of generalizations with every device.
Its a similar story with SD DVDs but with additional inconsistency and flaws in SD DVD recording, so the mileage varies from disc to disc as well as device to device (and scalling issues adds another dimention).
Now there are a wide variety of video cadence and encoding details in use around the world. It may be possible to find performance inconsistency in any device for some esoteric combination, but for the typical 3:2 or 2:2 pull down and interlace/de-interlace process, the above should hold true. The DVE HD test disc can point out some of these esoteric problems for you.
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