So generally VLC-supporting formats are those popular media video formats like MPEG (ES, PS, TS, PVA, MP3), AVI, ASF/WMV/WMA, MP4/MOV/3GP, OGG/OGM/Annodex, Matroska (MKV), WAV (including DTS).
What we know about VLC the most is that it is a free and open-source media player supporting multiple systems and receives a high reputation with a large number of free decoding and encoding libraries and you don't have to calibrate other plugins.