In all cases, please review the copyright situation with regard to your files. For now, I will assume there is not.
For the music, please consider taking the file into iTunes and converting it to the wav version.
With the .mp4 video...your message does not say what codec - video or audio or both. The "mp4" is just the file extension
(container format) that wraps the video and audio compression). You can download and install the free codec utility GSpot
and look at Video Name Codec Status and Audio Name Status information.
If your video is recorded with a variable frame rate instead of a constant one, that can introduce other factors into the troubleshooting
Looking forward to your further details.
Thanks for the quick response!
The exact message for the video file goes as such:
"This type of file is not supported, or the required codec is not installed."
So... the file type or "a" codec is not supported?
I'll look into the GSpot link a little later. Thanks for that
Thanks for the reply.
We will look forward to learning of the codec utilities readout for your files.
Typically the.m4a are seen here as iTunes music and problematic and the conversion to the .wav version is the remedy for that. And, iTunes is convenient for that conversion.
I am not sure what happened to your files if you say that they worked for you in your Premiere Elements 8.0/8.0.1 workflow.
Some added comments
1. If you have some of the old .mp4 files that presented before with no problems, try them again in your present setup where this type
of .mp4 file has problems importing into a project. Mp4 is just a file extension (container format). In these instances, it is important to know
the audio and video compression.
2. If the difference is those recorded with a variable rather than constant frame rate, the results could range from "imported by audio out of sync" to
"not being able to import the file at all". Conversion from variable to constant frame rate in HandBrake has been the answer to that type of problem.
OK... Finally got around to grabbing G-Spot. The codecs listed for one of the "wonky" files follows:
Audio Codec: mp4a: MPEG-4 AAC LC (info: 48000Hz 192 kb/s tot , stereo (2/0) )
Video Codec: avc1 (Name: H.264/MPEG-4 AVC)
Does that help? It's all Greek to my eyes
Still unsure about what Elements 8 is not liking...