I have read the "What is SVCD" of this website here on the left, but I have some questions.
In the SVCD file/folder structure there is a CD-i folder, but SVCDs can't play by the CD-i players, I think, so also if you put CD-i application it's impossible (even for speed problems: SVCD 2X; CD-DA, VCD, CD-i 1X, it's for this that VCD doesn't support VBR).
And there is also a CD-DA folder, but from Philips point of view there isn't any CD-DA folder, it's just optional for VCD.
More infos here:http://www.licensing.philips.com/includes/download.php?id=2698&filename=2450.pdf.
I don't want to make controversies, I just want to know the truth !
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Originally Posted by Hyper Shinchan
/Mats -
You win the prize! That information has been on there for years, and you are the 1st one to question it--but you're right.
VCD has CDI folder and files, and (optional) CDDA folder and files, but SVCD has neither. KARAOKE folder and files would also be optional in VCD, but not existent in SVCD.
Now, since you can always add files and folders to the non-application-specific part of the ISO track (track 1), there is nothing preventing you from including such files as the above, even though they won't be interpreted correctly by a SVCD-specific player. So, it doesn't "break" the compatibility.
What you DON'T want is actual subsequent Redbook Audio tracks after your SVCD MPEG video tracks--that might (should) break compatibility.
Now, whether or not the "What is" section is updated/corrected is another matter, one for Baldrick when he has the time, I'd guess.
Scott -
CD-I is just a multimedia system and is indeed included within the SVCD specs. Just like with DVDs, a CD-I player can be either a hardware or a software one. There are plenty of software players that support CD-I application commands included in either a VCD or a SVCD. I used to make SVCDs with CD-I hotspots (click with mouse) which I played in WinDVD. They worked great.
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Originally Posted by Hyper Shinchan
vcd4ever. -
The CD-i folder is not used for SVCD's because CD-i players doesn't support playing SVCD's.
CD-I is just a multimedia system and is indeed included within the SVCD specs. Just like with DVDs, a CD-I player can be either a hardware or a software one. There are plenty of software players that support CD-I application commands included in either a VCD or a SVCD. I used to make SVCDs with CD-I hotspots (click with mouse) which I played in WinDVD. They worked great.
Now, since you can always add files and folders to the non-application-specific part of the ISO track (track 1), there is nothing preventing you from including such files as the above, even though they won't be interpreted correctly by a SVCD-specific player. So, it doesn't "break" the compatibility.
aren't parts of the SVCD file/folder system.
An upgrade of the website it's important for me (but always when Baldrick have some time to make it).
Cheers!
P.S.:OK, and those are: ?
"I am right or not", this was the question.
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You win the prize! That information has been on there for years, and you are the 1st one to question it--but you're right. -
Hyper Shinchan I thought my post was pretty clear. CD-I is a multimedia standard that encompasses more than just the discs and the HARDWARE players. There is nothing preventing software developers from making software CD-I players, or players which support CD-I functions. A CD-I player is nothing more than a low level pc with custom software just for CD-I playback. WinDVD appears to play CD-I discs just fine, including SVCDs with CD-I functions included on them.
I can author hotspot buttons, which I believe are CD-I functions, into a SVCD using CeQuadrats VideoPack4 and I can play them back and use them in WinDVD. The files that are added when I author these hotspots, are stored in the CD-I directory. I don't know if this disc is still SVCD compliant or not, but it can be done and it works just fine.
Once again, hotspot buttons are ones that you can click with the mouse or scroll through with the arrow buttons and select with the enter key. They function exactly like the buttons do on a DVD player which provides much more functionality than normal SVCD selections. You can make the buttons highlight or animate when you either hover over them or click them. You can author hotspot buttons on a VCD and play them back via a hardware CD-I player or in a software player that supports CD-I functions, and you can author them into a SVCD and play them on a SOFTWARE player that supports CD-I functions. -
adam,
thanks. I'm going to have to go back and look at Videopak4. Actually, the VCD 2.0 (and SVCD) spec provides for their own hotspots, and these can be utilized in VCDImager (have to code the text by hand though). I have done this a number of times and it works well on software players.
New to me, though, is the ability (in Vpak4) to have highlighting/animation. It must have something to do with those extra CD-I files, as the standard VCD hotspots are included in the PBC files ("PSD.VCD" in VCD folder and "PSD_X.VCD" in EXT folder).
Are there any more enhanced CD-I type functions that you know and can make use of?
Scott -
No that's all that I know of. I've played with a CD-I player before but I don't even know of any other features that they would support.
Its been a very long time since I used Videopack 4.0 but I distinctly remember a rainbow effect that you can set when you select a button, where multiple colors move across the highlight. Its more than I've even seen on a DVD.
The hotspots that you add with xml scripting are very limited as I'm sure you know. -
Well your CD-i application are useful (but I make hotspots with Nero Vision express, and the Philips Video CD Toolkit, but they work only on sioftware player), but it's not compatible with an hardware CD-i player, even if I haven't seen one of them, effectivly a low level PC, but I've never heard of software use of CD-i (I think you are the only one to use them, adam).
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Originally Posted by Hyper Shinchan
This problem can be fixed by replacing the CD-i app with a CD-i app that supports hotspots, but the most annoying thing is that most VCD authoring programs doesn't allow you to replace the CD-i app.
Another annoying thing is that some VCD authoring programs that actually allows you to replace the CD-i app doesn't author VCD's with working hotspots even after replacing the CD-i app to a CD-i app that supports hotspots.
I know that philips videocd toolkit, vcdeasy (after adding the hotspots manually) and videopack 5 (after replacing the CD-i app) authors VCD's with working hotspots on a hardware CD-i player.
vcd4ever. -
I know that philips videocd toolkit, vcdeasy (after adding the hotspots manually) and videopack 5 (after replacing the CD-i app) authors VCD's with working hotspots on a hardware CD-i player.
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Originally Posted by Hyper Shinchan
Actually after reading through the SVCD IEC specs, they fully incorporate all of the VCD specs. So I think that's why the directory is part of the specs, just because VCD and all of its aspects are included as a subset of SVCD. But since there is no hardware capability for the directory it is just optional as opposed to being mandatory in the VCD specs.
Originally Posted by Hyper Shinchan -
Originally Posted by Hyper Shinchan
vcd4ever. -
Wll, in a SVCD you can put any folder or file that you want, but CD-i isn't a specification of SVCD, and for me it's pretty useless. For the VCD is mandatory to put the CD-i app., at least Philips say it, however I do it.
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It is optional in the specs, therefore yes it is indeed a part of the SVCD specifications. Lots of things are only optional, like soft encoded subs for example. If you'd like to purchase the IEC specifications you can confirm this for yourself. I agree this directory is pretty useless but it is still a part of the format.
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