DVDMF 7SE Fit-To-Disk Limited With An AVCHD File

[oka]

Am used to standard definition videos now I own the VSProX3/DVDMF7SE. I started the current issue at http://phpbb.ulead.com.tw/EN/viewtopic. ... 2de122cb42

I am disappointed to find out that AVCHD file has a limit on the size of video that can be made to Fit-To-Disk. One of the file is a one hour fifty-one minute AVCHD 4.7G video and it will not FIt-TO-Disk. The error said "The minimum size by reducing the bit rate still cannot fit to one disc". I would think it should fit the disk for a lower quality of the video (would have been a good option to have). I tried the same video for DVD 4.7G, and the fitting worked. Oh well, nice to know.

[oka]

Just curious, would any one know what are the parameter limits for an AVCHD video file to fit a DVD 4.7GB disk?

On the same note, is there any video size limit for standard definition video to fit a DVD 4.7GB (if video quality is not an issue?

[Ken Berry]

First, I have *never* -- repeat *never* -- had any faith whatsoever in any of the Ulead/Corel 'fit to disc options'. When they worked, it was only when the originally was only a few hundred MB over a standard def size... never when it was 1 GB or more bigger. For standard definition projects, I always produced the DVD as a folder in original size, and then applied either DVD Shrink or Nero Recode and got excellent results.

Second, you are not clear whether you are trying to convert AVCHD to standard definition and then getting it to fit on disc, all in one operation. I have certainly never tried that and certainly never will. AVCHD is just so demanding of system resources that even with the latest i7 technology, I have my doubts the two operations could be conflated.

Third: if, however, you are talking about an AVCHD hybrid disc (i.e. burning a quasi-Blu-Ray BDMV folder to a standard def DVD for playback on a rated Blu-Ray player), then I would only say that fit to disc AFAIK was never written for such an operation.

All that being said, your final question is a bit like asking how long is a piece of string. If you start off with a one hour fifty minute AVCHD file which is only 4.7 GB long, as you seem to imply, then IMHO it would have such a low bitrate that it would be a misnomer to call it high definition. My own experience with hybrid discs is that if I use a high quality bitrate of around 18 Mbps, I can fit no more than 20 minutes of AVCHD on a single layer DVD, but it is at original AVCHD quality i.e. excellent. That is also starting with AVCHD which had the same bitrate originally.

If your AVCHD came from a camcorder which used a maximum of 16 Mbps and you produce a hybrid disc using the same bitrate, you should be able to get around 30 minutes or a bit more with the same quality onto a single layer DVD.

And sure, initially, I produced a couple of so called hybrid discs where I squeezed around 50 minutes of AVCHD at a max bitrate of 12 Mbps (but in reality, most it much lower) onto a single layer DVD, but I would have to say that the overall quality was not very much better than a good quality standard definition DVD.

So for one hour fifty minutes, I would expect not much better than medium quality standard definition, if that...