It is a discount pack including four perfect products from Xilisoft: Xilisoft DVD Ripper can rip/copy DVDs to VCD, SVCD, DivX, MPEG1/2/4, AVI. Xilisoft DVD Audio Ripper can extract sound tracks from DVDs and save as MP3 or WAV. Xilisoft CD Ripper can rip CD tracks to MP3, WAV, WMA, OGG Vorbis, VQF, APE. And Xilisoft Audio Converter can convert between popular audio formats, such as MP3, WAV, WMA, MP4, M4A, MP2, VQF, APE, OGG, AAC and FLAC etc.