This is my first time creating AVCHD disk's. Previously with regular DVD's if the source material was to big, VideoStudio would just re-render the files to fit the size of the disk. I'm trying to produce an AVCHD DVD, rather than re-render the material, VideoStudio just states the disk is to small and won't render anything. Is this just the way it is, or is there a solution?
Thanks,
Marty.
Creating AVCHD DVD's...
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martythebrit
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As far as I am aware, the VS capacity to squeeze-to-fit (which I thought did a pretty awful job anyway) was written with code designed for standard definition DVDs, including the SD DVD structure. As you may be aware, AVCHD hybrid discs do not use that structure, even though they are burned to standard DVD blanks. The structure they use is in fact a Blu-Ray one. So the VS squeeze-to-fit (and similar programs like DVD Shrink and Nero Recode) will not work with hybrid discs.
I am afraid that you will therefore have to do it manually, and use AVCHD properties that will produce no more than 4.3 GB (or a little less if you intend to make a menu for your hybrid disc, which VS11.5+ and 12 will do). Like an SD DVD, this means essentially that you will have to play around with the bitrate.
Personally, I like to keep my AVCHD discs at the highest quality settings. That means a frame format of 1920 x 1080 and a bitrate max. of 17 or 18 Mbps. Using that, I find I can fit only about 20 minutes of AVCHD on a 4.3 GB single layer DVD. So I make sure my projects don't exceed that in length. (Probably a good idea anyway, so you don't bore your prospective audiences!
)
I have in fact, in the early days, squeezed around 50 minutes on a hybrid disc using AVCHD set at 1440 x 1080 and a max bitrate of 15 Mbps. But I can't say I was thrilled with the final quality. It was better than SD video, yes, but definitely not as good as HQ high def. And given the cheapness of SD DVD blanks these days, I definitely don't mind using more DVDs, rather than lowering the quality simply to squeeze more on!
I assume you have a Blu-Ray player which is also rated to play hybrid discs. Not all of them are...
I am afraid that you will therefore have to do it manually, and use AVCHD properties that will produce no more than 4.3 GB (or a little less if you intend to make a menu for your hybrid disc, which VS11.5+ and 12 will do). Like an SD DVD, this means essentially that you will have to play around with the bitrate.
Personally, I like to keep my AVCHD discs at the highest quality settings. That means a frame format of 1920 x 1080 and a bitrate max. of 17 or 18 Mbps. Using that, I find I can fit only about 20 minutes of AVCHD on a 4.3 GB single layer DVD. So I make sure my projects don't exceed that in length. (Probably a good idea anyway, so you don't bore your prospective audiences!
)I have in fact, in the early days, squeezed around 50 minutes on a hybrid disc using AVCHD set at 1440 x 1080 and a max bitrate of 15 Mbps. But I can't say I was thrilled with the final quality. It was better than SD video, yes, but definitely not as good as HQ high def. And given the cheapness of SD DVD blanks these days, I definitely don't mind using more DVDs, rather than lowering the quality simply to squeeze more on!
I assume you have a Blu-Ray player which is also rated to play hybrid discs. Not all of them are...
Ken Berry