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Thanks guys, Actually, I'm running Debian on a very small partition, so I don't have much spaces for the font cache. So every time I wanna download a big patch like openoffice, KDE upgrade or something else, the cache is the first thing I delete. I don't think it makes much sense so I just make luatex rest for a while until I got a chance to format my entire hard disk. And, for my case, I don't think luatex will show its advantage here, because I don't need it to treat the opentype fonts. Chinese characters are almost the same size, so I think we can even make a universal .tfm files which could match all CJK fonts. So technically, I don't need the AdobeMingStd-Light.otf to get these tfm files. Anyway, what I'm wondering is how to design the map file. What should I write on the basename column? I read about the pdftex manual but can't get much help. I've tried some other fonts, but only SimSun works, it's pretty weird. -- Best Regards Chen ---------------------------------------------------------------- Zhi-chu Chen | Shanghai Synchrotron Radiation Facility No. 2019 | Jialuo Rd. | Jiading | Shanghai | P.R. China tel: 086 21 5955 3405 | zhichu.chen.googlepages.com | www.sinap.ac.cn ----------------------------------------------------------------