I did it. Flashtool v3.1.0.0 from
http://www.mydrivers.com/dir34/d13655.htm (because flashtool.oem in that package is modified for Traxdata) and CDD4801 firmware v2.5 (file v2_5.cvt) from original Philips Flashtool v3.2. But it is strange - firmware version is changed from H2,1 to 2.5, but cd-writer identified now again as HP 9100с, not the Philips CDD4801.
