I am a long-time Cubase and Wavelab user. So long-time, Steinberg deleted my forum ID from inactivity, so I re-registered today. No worries.
Don’t laugh but I am currently using Wavelab 6.00a build 285 (for WinXP). I have found that using the pitch shift feature with this version DEFINITELY changes the file size and the timing. This is true regardless of the options on the pitch shift panel, like the DIRAC processor or whether I specify 100 for length preservation. I previously used Wavelab 3 and did tons and tons of pitch work and never saw this problem, ever! Also, maybe I’m missing something, but why would anyone want the length and audio timing to change when pitch is altered anyway? - just a rhetorical question.
Is it possible that what I have described above is a known problem in Wavelab 6? If so, is there an update I can apply to fix it? I know someone will likely say I should upgrade. But note, I didn’t see this problem in Wavelab 3.