On 15 Jan 2006, at 23:41, Jim Robertson wrote: > > Also, Lightroom doesn't bundle everything into > one huge database. I've not explored it yet, but that's a real > concern with > Aperture. I can't really see much difference between the database format of the two apps. Lightroom has ~/Pictures/Lightroom/Photos/<shootname> containing a bunch of original image files and perhaps a <filename>-Edit.TIFF if the image has been edited in Photoshop. Everything else seems to be in ~/Pictures/Lightroom/Lightroom\ Library.aglib and ~/Pictures/ Lightroom/Lightroom\ Library.thumbs (I haven't done much work in it yet, so it wouldn't surprise me to find more metadata files stored in the future). Aperture's "single file" database is simply a directory called ~/ Pictures/Aperture\ Library.aplibrary - OS X treats this directory as a bundle or a package or whatever, and so you have to right-click & choose "Show Package Contents" in order to explore it. Once you've grokked this philosophy, folder layout is remarkably similar to that of Lightroom. "Tibet - Aperture Sample Project.approject" contains a folder titled "2005-10-20.apimportgroup"; all the original image files are stored in there and data & XML files are littered around liberally. Of course if you don't like its database, Lightroom has the advantage that you don't have to use it. When importing files you get a bunch of options - you can move files into its database, copy them, copy them as digital-negative RAWs or just leave them where they are and "reference them". Core Image Technology is supposed to make Aperture more efficient, but Lightroom seems to run much faster for me. This is on a dual 1.8 G5, which I don't consider exactly slow, but all the Aperture users on the DPreview forums are talking about quads with 4gig of RAM. Maybe my 1.25gig of RAM is letting me down here, but it's the first time its done so. Even my unqualified eyes can see much better image quality in Lightroom, but I guess other cameras may be supported better in Aperture than mine is. Lightroom has quite a way to go yet - straightening & cropping are not yet available in the public betas (the Adobe reps who were at MacExpo are rumoured to have mentioned that they that feature in their builds) - but I suspect it's what I'll be using in a year's time. I don't know if I'm doing something wrong or if my dual-process G5 is underpowered, but Aperture is currently unusable for me, with presently only a handful of images in it. Stroller.