You don't say which kind of file (audio? video?) and from what source (a commercial DVD? a home-burned DVD?), but this may help:
The default settings of the Media Downloader are set not to show Audio. To see audio media clips you will need to click on the Show Audio button or press Ctrl + U on the keyboard. Watch out, Media Downloader will re-check ALL the files when you do this and you will need to Uncheck ALL again!
Are you able to see your media and download it via the Windows Explorer ?
Sorry, I am a rookie, but I have the same problems. In older versions of elements it could easily import MPEG-4 files. Now it gives the same message.
I have apple quick time pro (registered!) and the files can be read explorer as MPEG-4 files but elements refuses to import.
Try dragging and dropping the clips to your hard drive and then try using "Get Media, From Files and Folders" and see if you cant import them that way. If not them you will probably need to convert the clips to DV-AVI which PE7 handles natively. You could use Quicktime Pro to convert them.
Before jumping into the discussion, I was waiting to see what your answers were to SG's questions re: details.
What troubled me was "Unable to import audio from CD/...." and what was on that CD besides audio. If it is just audio on CD disc, you are not going to get that into Premiere Elements with that CD in the DVD/CD drive tray and the Premiere Elements Media Downloader. You will have to rip the audio from that CD in Windows Media Player. In the process of doing that, a copy (.wav) is placed automatically in a folder in "My Music". Then with Premiere Elements 4 you bring that audio from the My Music folder into Premiere Elements 4 via Get Media/File & Folders.
I did two experiments, which may be meaningless depending on what you actually are working with.
1. I burned a .wav file to DVD disc and then tried to import that into Premiere Elements 4 via its Media Downloader (DVD disc in drive tray) as well as via Get Media, Files & Folders (from a hard drive saved location for the .wav). Both ways worked.
2. I repeated the process with a .mp3 file and every thing worked as it did for the .wav version.
So without more details and clarification, I do not know what question we need to address.
To whom it may concern,
Until I get accustomed to this new system, please excuse any of my posts that get directed as a reply to the wrong person. I need to figure out what to do with all those "reply" buttons.
So for now, I will continue to put the name of the person to whom I am replying in the first line of my response.
As Tony points out, if it's an Audio CD, it will have the file data as .CDA. This is unusable by PE, and one must "rip" to something that PE can understand. PCM/WAV (will be 44.1KHz 16-bit) will be the best. PE will need to conform that to PCM/WAV 48KHz 16-bit, so do watch the little bar on the lower-right of the screen with "Conforming Audio," while it Imports. Same for "Generating PEK files," which allows PE to display the Waveform. This could take a moment, depending on the Duration of the piece and the speed of one's machine.