A question about burning a WinonCD 3.8 photo cd

[Lepy]

When you add a bunch of jpgs into various albums and you start the burning process, what exactly is WinonCD turning the pics into? It states that it is creating the bitmaps. Is it just converting the jpgs to bmp? If so, can I convert the pictures to bmp prior to adding them to speed up the creation process or is there a way to allow WinonCD to burn a photo cd without converting the pics.

Also, one last question. When I burned a photo cd using jpgs the data size bar was at about 200, but when the creating bitmaps message finished, it said that my cd was too small. It said the required space was around 910 megs! Now, am I just stupid and accidentally added 900 megs of pictures or did WinonCD convert them to enormously large bmps? Anyway this can be avoided?

Thanks!

[frogster]

I asked a similar question
http://www.vcdhelp.com/phpBB/viewtopic.php?topic=58595&forum=1&1

and i've seen it asked before, but no one answers.

i know that winoncd stores the original image on the disk and also makes an image for displaying (i guess bitmap) and that is why the file size jumps so.

i don't understand why winoncd doesn't account for that. i spent a long time making an album that supposedly took up 300 megs but took over a gig when i went to burn it.

[Lepy]

Yeah, the bitmap creation process can take a while depending on the size and amount of pics. I did make a cd with around 700 pics and I believe the file size was around 150. It worked without a hitch. One of the first cds I tried to make with WinonCD had around 900 pics with a size of 220. It ended up being 910 mb project post bitmap creation.

I guess the best answer to this is either put less pictures to cd or lessen the quality.

If anyone has anymore nfo regarding this, please post. Thanks!

[vitualis]

The still images on a VCD that are displayed are encoded as MPEG-1 stills. They are not "bitmaps" in the sense of the Windows "BMP" format.

Regards.

[Lepy]

Thanks for your response vitualis! Do you know why so much space is added onto the disc? I guess if the pictures are converted to an mpeg 1 still, time is a bigger factor than space. Is there anyway to figure out how big the finished project will be? It seems to add about 600 megs or so, but why does it do that? I doubt there is a way around this, but if anyone knows, please respond.

[vitualis]

I'm unable to help you with this question...

I'm don't know how WinOnCD actually authors the disc because I don't use it. From my own experience, each of my own MPEG still images that I create for my VCD projects will takes up 2 seconds of space on the VCD (~350 kb) regardless of their actual size. This is involved with how the actual images are placed on the disc.

1980 segments are allowed on a VCD. If you created a VCD with 1980 mpeg still images, it would take up about 670MB (I think -- I didn't actually calculate this).

I'm under the impression that WinOnCD actually also includes the original image as well?? If so, you will lose a lot of capacity from this.

Regards.

[JohnT]

This is a topic I've also wondered about. I have been copying the original JPEGs to disc as well as the converted images, so that I can copy or print them in the future. Is there any program that can convert MPEG stills (if that is what WinOnCD and Nero make) into JPEGs or BMPs? This would help to save space and duplication. Thanks

<font size=-1>[ This Message was edited by: JohnT on 2001-09-19 08:42:09 ]</font>

[frogster]

I'll check one of my winoncd photo albums to make sure the orignals are still there.

I'd prefer to have the original along with the bitmapped version so I don't have to make non photo album CDs for backups.

I'm trying to keep my albums under 400 pictures to avoid going over the CD size limit.