DVD Studio Pro Glitch: Cannot launch DVDSP while copying files
Here’s something fun to try if you own DVD Studio Pro. Find a large file or folder on your computer (something over 2-3 GB or so) and copy it from one drive to another (or even within the same drive). Now try to launch DVD Studio Pro. Know what will happen? Nothing. at least not until that file is finished copying.
The splash screen will appear, then the “spinning beach ball of death”. If you press Command+Option+Escape, you will see the computer thinks DVD Studio Pro has stopped responding. Take a peak at Activity Monitor and you will see it too thinks DVDSP is dead, as well as 2 more processes: “DSPX_EncoderServer” and “DSPX_AEncoderServer” . However, as soon as your file finishes copying, all is well and DVD Studio Pro will launch as if nothing ever happened.
The real problem is that those extra 2 processes, “DSPX_EncoderServer” and “DSPX_AEncoderServer” never come back to life. We’re not sure what they do. We thought maybe, given their names, they had something to do with DVDSP’s encoding abilities, but we found we were able to successfully encode a QuickTime to MPEG-2 even with them stuck at “not responding”. But every process has a purpose, and so too must they, so it can’t be a good thing. We reproduced this behavior on both Mac Pros and PowerMacs (all running the latest version of DVDSP and Mac OS X), so we’re fairly confident this is a legitimate bug.
Macenstein employee Count Macula noticed this odd behavior while copying some 30GB of files, and DVD Studio Pro failed to launch for that entire 15 minutes. We are arbitrarily suggesting you copy a file or folder over 3 GB in size just so you have time to notice the error, as it takes about 20 seconds for these processes to appear in the Activity Monitor as “not responding”. Final Cut Pro opens fine under these conditions.
Anyone else able to verify? Any techies out there know what’s going on? (we tried to report the bug to Apple via the Bug Reporter, but we got “An Exception has Occurred” error. The Apple Discussion forums seem to be down now too. Feel free to submit this if you verify the issue).
[UPDATE:] Apparently the DVD Studio Pro 4.1.2 update released yesterday (sort of ) fixes this.
What happens now seems to be, if after a fresh reboot, you try to open DVDSP while copying a large file, it will still hang, but eventually it snaps out of it after the file/folder has copied about 3GB worth in our test, or about 1 minute.
Those other 2 processes do not hang every time (maybe 1 in 6 tries). However, when they DO, they still do not UNhang.
The improvement with the update is that once DVDSP has launched once on a computer, it will open fine on subsequent launches, even when copying large files, until the computer is rebooted. It will then hang again until the file finishes copying. A log out/in will not hang it like a reboot will. So the odds are very few people will run into this problem, as how often after a fresh reboot to you begin moving large files and then immediately open DVD Studio? Still, it’s weird, and worth fixing.