When I try to encode, it asks me for "Progress.app". I read some of the earlier comments that said it's in the "ffmpegx bundle" but I can't seem to be able to view the package info or anything?

When I try to preview, it gives me this error message:
---
libdvdread: Couldn't find device name.
Using AltiVec optimized IMDCT transform
Checking for AltiVec resampler :
0x00000002, 2
Using AltiVec optimized resampler
The selected video_out device is incompatible with this codec.
Also, try adding the scale filter, e.g. -vf
spp,scale instead of -vf spp.

MPlayer interrupted by signal 11 in
module: decode_video
- MPlayer crashed by bad usage of CPU/
FPU/RAM.
Recomple MPlayer with --enable-debug
and make a 'gdb' backtrace and
disassembly. Details in DOCS/HTML/en/
bugreports_what.html#bugreports_crash.
-MPlayer crashed. This should happen.
It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
gcc version. If you think it's MPlayer's
fault, please read DOCS/HTML/en/bugreports.html and
follow the instructions there. We can't and
won't help unless you provide this
information when reporting a possible
bug.
Quartz error: CDSequenceEnd (-50)
---

Yeah, sorry, REALLY long. But any help would be appreciated! ffmpegx used to work fantastically for me, so I have no idea what's up with all this.