[Gdal-dev] HDF Georeference

[wlx]

Hi all,
     In the hdf4 format
homepage(http://www.remotesensing.org/gdal/frmt_hdf4.html),it is sayed that
gdal can support ASTER L1B data's georeference. 
    When I use gdal_translate utility to translate a ASTER's subdataset to a
geotiff file,I find the geotiff file include nothing about georefence.
    
    Is there something wrong?

    And is there anybody who have a mapserver map file includes hdf4 data?
 
    Best regards,

LiangXu Wang