This is not Adobe. Here, user to user. If you want help here, please supply the details necessary for us to help you.
1. What version of Premiere Elements are you using and on what computer system is it running?
2. What are the complete properties of the file that you are trying to import into a project? Are you trying to work with audio files, video files with linked audio,....? From what you wrote, it appears to be audio files. If so, where are these files coming from, iTunes, other?
3. Is the problem targeting all your "audio" files or just one particular file and does the problem exist even if you start a new project?
4. How long ago did this program used to work fine? And, to what "unnecessary updates" are you referring?
Let us start here if you would like our help. Then we can decide what next.
I'm using PE12 CC I can add mp3 and wma files but it's not letting me add mpeg4
Thanks for the opportunity to try to help you resolve your Premiere Elements issue. But first we must establish that you are using Premiere Elements 12. The reason for asking for that confirmation targets the "PE12 CC" that you indicate as your program. There is no Premiere Elements 12 CC" The CC designation, as far as I have ever seen, goes to the Creative Suite products.
Assuming you are using Premiere Elements 12 on Windows 7, 8, or 8.1 64 bit computer....
1. Do you have the latest version of QuickTime installed on your computer with Premiere Elements 12? Have you updated to 12.1 via the program's Help Menu/Update? Also, check under Publish+Share/Computer/QuickTime to verify that you have QuickTime presets.
Let me cut to what I believe the problem to be...I am guessing that you have music files with iTunes origin. Whatever the case
a. Open iTune and go to the Edit Menu/Preferences/General and click on the Import Settings tab there.
b. In the Import Settings dialog that appears, next to "Import Using" set for WAV Encoder. OK out of there.
c. Import your file into iTunes, using File Menu/Add File to Library.
d. In iTune Music, right click the imported file and select "Create WAV Version".
e. Copy the .wav version produced and then paste it to the desktop computer.
f. From the desktop computer, import this .wav file into Premiere Elements 12 Expert workspace, using Add Media/Files and Folders.
Please let us know the outcome. If this an iTunes music issue, please be advised that this situation happens in Premiere Elements (any version). If I have not targeted your question, please supply more details.
>not letting me add mpeg4
MPEG4 is a wrapper, what is inside YOUR wrapper - Exactly what is INSIDE the video you are editing?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
http://forums.adobe.com/thread/592070?tstart=30 for screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
Please don't answer to this question, I have found the not retarded way to do it.
Look at what you are replying, do you listen to yourself?
From ATR to Olivierroubieu
I have just read your post numbered 5 and am pleased you have found the answer to your problem. Would you care to share that finding with us?
I gave you a very valid customized reply based on the information that you supplied and Premiere Elements history as well as first hand experience with the versions. So, I am a bit disappointed that you suggest that the information that I gave you is "the retarded way". What part of the information that I supplied fell under your description?