Of course the scores on the editdroid are low quality, most likely equivalent to a mp3. You cannot fit a full bitrate PCM on there and keep the video quality as well, and have multiple audio tracks in lossless unless you are creating a blu ray disc.
From what i am aware of You cannot fit the gout video and the 1993 audio PCM even with the menus and lego thing stripped out, and fit it on a DVD9.
With no compression, much less fit on on a DVD5.