versions 6607q8 and 6608q8 generate same files
www.lipowiec.org\im\611.png
convert 611.png 611.psd
convert 611.png 611.psb
convert -alpha off 611.png 611off.psd
convert -alpha off 611.png 611off.psb
File CRC Size Date Time
------------ ---- -------- -------- ------
611 .PNG 0730 49530 1-29-09 10:12p
611 .PSB B026 524473 3-24-10 11:04a
611 .PSD FB90 524449 3-24-10 11:15a
611OFF .PSB 72B7 198147 3-24-10 11:07a
611OFF .PSD FCC0 196607 3-24-10 11:16a
when opening 611.psb with CS4PS gives error message "Could not complete your request because file is not compatable with this version of photoshop
the other 3 file open with no problem.