Editing 3GP and 3G2 (section)

===3G2===
The 3G2 file format can store the same video streams and most of the audio streams used in the 2007 3GP file format. In addition, 3G2 stores audio streams as [[EVRC]], [[EVRC-B]], EVRC-WB, 13K ([[QCELP]]), [[Selectable Mode Vocoder|SMV]] or [[VMR-WB]], which was specified by 3GPP2 for use in ISO base media file format.<ref name="mp4ra" /> The 3G2 specification also defined some enhancements to 3GPP [[Timed Text]]. 3G2 file format does not store Enhanced aacPlus (HE-AAC v2) and AMR-WB+ audio streams.<ref name="3gpp2-vs-3gpp" /> For the storage of MPEG-4 media (AAC audio, MPEG-4 Part 2 video, MPEG-4 Part 10 – H.264/AVC) in 3G2 files, the 3G2 specification refers to the MP4 file format and the AVC file format specification, which described usage of this content in the ISO base media file format. For the storage of H.263 and AMR content 3G2 specification refers to the 3GP file format specification.<ref name="3gpp2-vs-3gpp" />