MP4 MP3 Converter convert支持MP4和MP3格式文件之间的相互转换。它是一款易于使用的多合一音频转换软件。它可以从AVI, ASF, WMV, MPEG1, MPEG2, QuickTime MOV, and Real Media 文件中提取音频文件。输入文件支持：3G2, 3GP, 3GP2, 3GPP, 4XM, AAC, AC3, ADX, AFC, AIF, AIFC, AIFF, ALAW, AMR, AMV, APE, ASF, AU, AVI, AWB, CAF, CDA, CDATA, DIF, DIVX, DTS, DV, DVD, DVR MS, DXA, FLAC, FLC, FLI, FLIC, FLV, FLX, GSM, GXF, H261, H263, H263 plus, H264, IT, KAR, M1A, M1V, M2A, M2TS, M2V, M4A, M4B, M4V, MID, MIDI, MJ2, MJPEG, MJPG, MKA, MKV, MLP, MLV, MMF, MO3, MOD, MOV, MP1, MP2, MP3, MP4, MPA, MPC, MPE, MPEG, MPG, MPGA, MPP, MPV, MTM, MTS, MTV, MVI, MXF, NSA, NSV, NUT, NUV, OGA, OGG, OGM, OGV, OGX, OMA, PSP, PSX, PVA, QCP, QT, RA, RAM, RM, RMI, RMVB, ROQ, RPL, S3M, SDP, SHN, SMK, SND, SOL, SPX, STR, SWF, TS, TTA, UMX, VFW, VID, VMD, VOB, VOC, VQF, W64, WAV, WAVE64, WM, WMA, WMD, WMV, WV, XA, XM, XVID, XWMV, and YUV. Supported Output Files: MP3, WAV, WMA, AAC, MP4, M4A (MPEG4 Audio), M4B (MPEG4 Audiobook), OGG, AMR, 和 AWB.