Yamaha Manuals for sale?

Since I don’t know any Chinese, this is a guess, but it looks to me like (computer-based?) service manuals for some Yamaha models are for sale on the Yahoo auction site.

http://tw.f5.page.bid.yahoo.com/tw/auction/e30208956

Could be useful if true, even though they’ll be in Chinese.

Any Sino-literati out there care to check my guess?