Rasterization of complex postscript-file crashes in 64-bit Photoshop CS5

Question

Rasterization of complex PS-file crashes in 64-bit Photoshop CS5
I have a variety of complex postscript files that were created in Adobe InDesign CS3 and CS5 through "print to postscript file". I try to rasterize these files in Photoshop CS5 (64 bit on Macintosh) and it crashes Photoshop even before the dialog box comes where one has to specify the dpi for rasterizing. If I use Photoshop CS3 or Photoshop CS5 with 32 Bit opening, it does not crash; and in this case I can rasterize a 100cm x 160cm format with 300 dpi.
If I reduce the complexity to near triviality it works with the 64 bit version.
A major reason why I bought CS5 was because I thought that with the 64 bit version I can handle rasterization of large files better: there are a few minor artifacts created by rasterization in Photoshop 32 bit version which are presumably due to some memory problems; I thought the 64 bit version can solve it. But now it turns out that the 64 bit version cannot handle complex files at all.
If I use Distiller to convert the postscript-File into a pdf file, then the 64-bit version does the rasterization, but there are some reasons why I prefer the rasterization directly from the postscript file.
Is that a bug of the 64 version?
V.S.

Answer 1

I did a lot of testing in the meantime since we have often the task to printout large charts with complex content on plotters of medium size printing companies who need tiffs since they cannot handle pdfs with complex contents.
It turns out that for large charts with complex content the method to export from Indesign to pdf with PDF/X-1a profile and subsequent rasterization in photoshop to create the tiffs sometimes produces a few minor artifacts; mainly very thin white lines that you see in the printout. Also it is not good if your file contains graphics for which PDF/X-1a profile sometimes does not yield the desired high quality. (In addition the pdf file has a lot of display artifacts visible on screen but not manifesting in the rasterized photoshop file.)
The use of the "High Quality Print" profile (instead of PDF/X-1a profile) makes it worse since sometimes semi-transparent objects are printed as 100 percent solid. The solution in this case is to change the Acrobat 5 compatibility of the "High Quality Print" profile to Acrobat 4 compatibility, this solves the semi-transparent problem, I don't understand why, but it does.
On Macintosh one can print to pdf (instead of export to pdf), this solves all problems with artifacts as far as I can judge; however  "print to pdf" has PDF/X-1a profile and I don't see any direct way how to change it to "High Quality Print" profile. Presumably I would have to locate somewhere in the Library > Adobe Application Support > Adobe (on Mac) the presets for "print to pdf" and change it if possible.
The easiest way on Macintosh that gives no artifacts is for large charts with complex content to "print to postscript" (with Adobe PDF 9.0 PPD), then use distiller with any suitable profile, like "PDF/X-1a-2001" profile or "High Quality Print" profile, to produce a pdf. This pdf looks fine on screen and simultaneously when rasterized with Photoshop (for example the 64 bit version of CS5) gives you a good photoshop file.
You may be right that the workflow
Indesign > print to postscript > pdf via distiller > rasterize to photoshop file
is outdated for simple and medium complex projects, but for those really complex large charts this is the only viable way to my knowledge; I also know that some of my colleagues use this sometimes for complex projects when export to pdf creates artifacts.
V.S.