The PDFs look like poor quality scans of poorly printed hardcopies, and thus many of the accent marks over the romanized cantonese words are indistinguishable from one another. This makes it difficult for the student who is just learning to figure out what should be pronounced how. Additionally, the source text book which was scanned for this distribution seems to be old as well as very rudimentary in its nature. It looks outdated and rough in terms of presentation of material. The audio files have a lot of background noise and... read full review »