Talk:VOCALOID4/@comment-6433273-20141222020040

"===Known issues === While it is possible to use VSQX files from VOCALOID3 in VOCALOID4, the files saved in VOCALOID4 cannot be used in VOCALOID3.[5]  "

Actually... I just loaded a V4 VSQx in to the V3 Editor (one of my stupid VOCALOID experiments :P) and it's working just fine. Although it might be that I updated the V3 Editor to version 3,2,1,0.... :P