how to move iPhoto slideshow to other computer?

The reason you couldn't find any slide show when searching through your iPhoto Library is because iPhoto doesn't make a file until your Export or Share.
Exporting offers three size (largest is 640X480) and you say you're not happy with the display.
Have you tried using Share?
Share to iDVD and a new 720X540 MPEG-4 QuickTime movie will be made. No need to burn or even create a DVD. The new file can be found in your User's Movies folder.
This file uses a very high data rate (nearly 7000kbits/sec) that may not play smoothly unless you have a powerful Mac. My iMac mini (G4 1.42) can't play them without stuttering.

Your right Christopher. It's quite irritating that the slideshows can't be exported as a folder of JPEGS. If I create an Album, I can export the files to another folder, however, if it's a slideshow, then you can only make a movie.

The slideshow info appears to be in the AlbumData.xml, which, as I understand is generated from Library6.iPhoto. It wouldn't be very hard to create a script to parse the album data, and then copy the needed files. However, I don't know how you would script recreating the slideshow once you had the files copied over.

This is typical Mac software, where you only get the features they think you'll need. If I have a desktop and a laptop, and I want to copy the slideshow over to the laptop, and then continue editing the slideshow on the laptop, it should be very simple, but as it stands, it's virtually impossible.

You could try the Sharing feature. In the Preferences, there is a Sharing pane. Turn on sharing on the Mac that has the slideshow, and select either your entire library, or just the slideshow album. On the mac you want to move it to, select "Look for shared photos" in the prefs. Your slideshow should appear on the 2nd Mac. At that point, I believe you can Duplicate the slideshow (select the album, Photos > Duplicate, or ⌘+D).

See: http://docs.info.apple.com/article.html?path=iPhoto/5.0/en/hlp205.html

Good luck!

G4 400 AGP Mac OS X (10.4.6)

Christopher,
All the info for books, slideshows, albums, etc is all in the data files. You are correct that this makes it hard to transfer from one Mac to another, but this is the way that it is. Can you imagine how the size of your library folder in the Finder would expand if you had a separate file for each slideshow, book, album, etc. The separate file would have to include all the images and transitions and music.
This is why the completed slideshow, book, etc. is assembled when you export them to share.

There is a way:
Duplicate your iPhoto Library folder
Launch iPhoto with the Option key held down until you ge the message screen
Choose another library to open
Navigate to the duplicate library and highlight it, then click open
You should see your slideshow in the source column.
Highlight the slideshow
To put the slideshow photos into an album
Go to Edit>select all
Go to Photos>My rating and give them all a rating of either 1,2,3,4, or 5 stars, to help you find these photos in the library to make an album from them
or
go to Photos>Batch change and change the "title" to "text" and give them all the name of the slideshow.
Once the titles have changed you can go to the library and do a search for that title and select all the photos and put them in an album.

Now you have to delete all the photos from the library that are not in that album so you are left with just the slideshow/album photos.
Make sure you empty iPhoto's trash often when deleting all the photos.

when done you can close iPhoto and copy this iPhoto Library folder to the other Mac.
On the other Mac, the person has to Option launch iPhoto and choose that library to open. Your slideshow should be there and it should play , but since I have never done it I can't tell you for sure.
You might have to do a "get info" on that library folder and change the permissions to the new owner of that computer, then hit the "apply to enclosed items" button.

Yes this is frustrating.

It seems that the work-flow should be to do all the ordering of the slides in the ALBUM -- not in the slideshow at all. The only work that would be done in the slideshow is the customized transitions for individual or groups of slides. It is that customization that is made so difficult to copy to another machine.

The upshot of this is that one should try to one or both of the following:

1. Keep slideshows shorter rather than longer.
2. Minimize the number of custom transitions.

Those are pretty wise best practices for slideshows anyway.

I just did a 231 slide show. I used "dissolve" as the default. There was a group of 15 where I used "cube" and a group of 10 where I used "large mosaic". There were about four other individual slides that used custom transitions. For timing I used "fit to length of music" (came to about 3 seconds per slide).

I set the order in an iPhoto album on my iMacG5. Then I copied the folder and imported it to the camp's PowerBook G4 laptop. I put all the pics in a new album on the laptop and created the new slideshow. It took me less than a half hour to set up the transitions. And I'm a new user to iPhoto's "Slideshow" feature.

The slide show was stunning and incredably well received. It was an end of camp show that played to the 250 campers and staff.

It is true that it seems rediculous that iPhoto can't perform this simple task.

However, given that iPhoto is free software and that it actually produces professional level slideshows with relative ease, I've basically adjusted my expectations to work within its limitations.

Sam*

Sorry... I just tested this and found that slideshows only appear as regular albums when shared (in iPhoto 6, anyway). Rats.