No doubt meddling with the PC & Mac crossover is asking for trouble. Here's proof:

I've edited subtitles on my PC, using Subtitle Workshop (exported to DVD Studio subtitle format).

My Mac friend tried to import the txt file, but had some error message, it didn't import the txt sub file.

I double checked the subs for overlapping in Ulead DVD Workshop, they were fine, nothing was wrong. Exported the same file to several formats, they worked just fine in my PC (subrip, encore, ulead, etc)

Does this have to do with text files character set (UTF, ANSI, etc)?