I've been noticing that certain series can be downloaded as normal HDZone rips (TV rips) and also as DVD rips. Wouldn't it be strange if TVB releases DVD when the series are still airing? What are the difference other than the quality? What are the source of the DVD? Are they DVD or just HD with better quality source? Note: Been posting this in the wrong forum and got moved Anyway, seems that have I have found some answer: The Source of the DVD Rips: