share file question

[sleeper]

I recorded my movies in avchd using a sony 550v camcorder.I made a avchd using share file "same as first video clip". I put it on a dvd disk.
To get the best quality, should I have used the avchd or the blu ray h.264 or blu ray mpeg2. What are the differences with them. Is there somewhere to go to explain the differences in the formats? I have searched the forum but I couldn't find anything comparing them.

[DVDDoug]

I think this is a difficult question, and hopefully somebody else will chime-in if I get something wrong...

In general, you are better-off keeping the same format as-is without altering it. that way, you know the video is not degraded in any way. (That assumes that there's nothing "wrong"... A big assumption! )

I don't know if smart render works with AVCHD, or if it works with all flavors of H264/AVCHD, etc. Smart render works by re-rendering the video only where it's required. So, lets say you take a clip from your camera, chop something out of the middle and re-join the remaining parts with a cross-fade transition. With smart render, most of the video won't be touched at all and only the transision will be re-rendered.

Now, if you make a color adjustment to the entire video, or if you re-render to MPEG-2 or other format, smart render won't help since everything has to be re-rendered. Or, if you're making a standard DVD and your camera shoots AVCHD, the video must be re-rendered to standard-definition MPEG-2.

The big advantage of "advanced" compression is smaller files. All of these formats are lossy compression, which means that data is thrown-away during compression. For a given bitrate/file size AVCHD can give you better quality than MPEG-2. ( AVCHD is an MPEG-4 variation and is "smarter compression" than MPEG-2.) But, at higher bitrates (where less compression is needed) there will be little or no difference (I think). I have a feeeling that the best MPEG-2 is better than the best AVCHD, and if file-size were not an issue, uncompressed video would be better.

The newer, more-advanced, and more-compressed formats can be "difficult" to edit or convert. So, the least-compressed formats are usually best for video production/editing and you can always compress as the last step before making a DVD/BluRay (which is how the pros do it). But, you're stuck with your camera's format.

[Trevor Andrew]

Hi

We really need to know what you intend to make and/or rather what you are capable of making?

What version of Video Studio are you using?
Do you have a BluRay DVD Burner?
Do you have a BluRay Player?
Are you intending to make a Bluray disc or a standard DVD?

[sleeper]

Thanks for your help. The answer does help. I have a blu ray burner and player. I am trying to make a avchd on a reg dvd. I think it is called a hybide dvd? Is that whay it is called. however, I now have a problem. I made a share file with the properties the same as the imput video from the sony 550v camcorder. I :then go to 7se and burn a disk okay,again keeping the properties same as the first clip. Then when I try to play it on my new samsung blu ray player it starts to play and then goes into a loop playing only a few seconds at the beginning. I made a avchd before with the same equipment and it worked fine. Any thoughts? Thanks again. sorry forgot to add I am using vs3 pro. andmovie factory 7se

[Ken Berry]

It could be a number of things, all largely unrelated to the format of the video itself. For instance, when I make my own hybrid discs, I make sure I burn at the lowest possible speed that the particular disc brand will allow. The current discss I use (Ritek) allow a low burning speed of 4x, so I use that. While not everyone agrees, the theory is that a low burn speed allows the burning laser to embed the signal more firmly into the disc and thus potentially make it more susceptible of playing back on a wider variety of players.

The question of the player brand is also important. In this case you say your Samsung has already successfully played back a previous hybrid disc you made, so evidently it is rated to play hybrid discs, though not all Blu-Ray players have that rating. But some Blu-Ray/DVD players are known not to "like" certain brands or types of blank disks. Some may not like +R or RW disks. Some don't even like the dye used to colour certain other discs.

Unfortunately, a lot of this is trial and error. But first I would try the idea of burning at as low a speed as you can...

[sleeper]

thanks for the help. I will see if lower burn speed will help. I let you know. I hope it is, it is the only varable I can thank of.

[sleeper]

I asked about changing burn speeds in 7se section. I didn't know if it should go here or there.Sorry. My burner is a pioneer 205. The speed is set to max. and it is grayed out so I can't change it? A disk is in the burner, and I clicked on the wheel in the lower left to go to the burn speed option. What am I not doing to change the burn speed. Again I am sorry about posting this question in the 7 se question. Thanks .

[Ron P.]

Yep, read your post in the DVD MF7SE forum... http://forum.corel.com/EN/viewtopic.php ... 27#p202327

Posting your last question in that forum was correct, as it is about DVD MF7SE..