When you try to import a WAV file into Flash, you receive the message, "This file type is not recognized."
Convert nonstandard WAV file formats to the standard PCM WAV file format. Most Windows operating systems include the Sound Recorder application, which you can use to convert incompatible WAV files to PCM WAV files.
Note: If Sound Recorder is not installed, you can use the same procedure with any Windows compatible sound editing software, such as Sound Forge (http://www.sonicfoundry.com).
There are several varieties of WAV file formats. Flash supports the PCM format only. Unsupported WAV file formats include CCITT A-Law, CCITT u-Law, DSP Group TrueSpeech(TM), elemediaTM AX2400P music codec, IMA ADPCM, Microsoft ADPCM, MSN Audio, and GSM 6.10.