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Hello:<BR>
<BR>
I think is woking well by using GDALINFO to open hdf5 image,like this:<BR>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>I:\gdalinfo Z_SATE_C_BAWX_20100129130049_P_FY<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_GBAL_L1_20100129_0115<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.h5<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Driver: HDF5/Hierarchical Data Format Release 5<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Files: Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_GBAL_L1_20100129_0115_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">h5<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Size is 512, 512<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Coordinate System is `'<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Subdatasets:<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>SUBDATASET_1_NAME=HDF5:"Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_G<SPAN style="mso-spacerun: yes"> </SPAN>BAL_L1_20100129_0115_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.h5"://BB_DN_average<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">SUBDATASET_1_DESC=[5x8000] //BB_DN_average (32-bit floating-point)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>SUBDATASET_2_NAME=HDF5:"Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_GBAL_L1_20100129_0115_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.h5"://EV_250_Emissive<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">SUBDATASET_2_DESC=[8000x8192] //EV_250_Emissive (16-bit unsigned integer)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>SUBDATASET_3_NAME=HDF5:"Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_GBAL_L1_20100129_0115_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.h5"://EV_250_RefSB_b1<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">SUBDATASET_3_DESC=[8000x8192] //EV_250_RefSB_b1 (16-bit unsigned integer)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>……</FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">……….<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Corner Coordinates:<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Upper Left<SPAN style="mso-spacerun: yes"> </SPAN>(<SPAN style="mso-spacerun: yes"> </SPAN>0.0,<SPAN style="mso-spacerun: yes"> </SPAN>0.0)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Lower Left<SPAN style="mso-spacerun: yes"> </SPAN>(<SPAN style="mso-spacerun: yes"> </SPAN>0.0,<SPAN style="mso-spacerun: yes"> </SPAN>512.0)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Upper Right (<SPAN style="mso-spacerun: yes"> </SPAN>512.0,<SPAN style="mso-spacerun: yes"> </SPAN>0.0)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">Lower Right (<SPAN style="mso-spacerun: yes"> </SPAN>512.0, <SPAN style="mso-spacerun: yes"> </SPAN>512.0)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman" size=3>Center<SPAN style="mso-spacerun: yes"> </SPAN>(<SPAN style="mso-spacerun: yes"> </SPAN>256.0,<SPAN style="mso-spacerun: yes"> </SPAN>256.0)</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><o:p><FONT face="Times New Roman" size=4> but wen I trying to open a subdataset ,it's can't work well,why?</FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><o:p></o:p></SPAN><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">I:\gdalinfo HDF5:"Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_GBAL_L1_2010012<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">9_0115_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.h5"=BB_DN_average<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">ERROR 4: `HDF5:Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI_GBAL_L1_20100129_0115_0<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m"><SPAN lang=EN-US>250M</SPAN></st1:chmetcnv><SPAN lang=EN-US>_MS.h5=BB_DN_average' does not exist in the file system,<o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">and is not recognised as a supported dataset name.<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT size=3><FONT face="Times New Roman">gdalinfo failed - unable to open 'HDF5:Z_SATE_C_BAWX_20100129130049_P_FY<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="a">3A</st1:chmetcnv>_MERSI<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman" size=3>_GBAL_L1_20100129_0115_<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="250" UnitName="m">0250M</st1:chmetcnv>_MS.h5=BB_DN_average'.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman" size=3>regards</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman" size=3>ben</FONT></SPAN></P>
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