#1 20D, shooting problem to CF

[Tomas Mandys]

When shooting to camera flash disk, photo is taken but
software stay 1 minute in busy state and error is
returned.

<pre>
Shot [PICT_TO_CAM]!
.\CanonCam.c (2587):
RCCapture(hData->Source->hSource), CDSDK,
INTERNAL_ERROR (0x0002)
</pre>

When captured to PC disk:

<pre>
gcan setcam av=5.6 ; setcam tv=90 ; shot "c:\image%u.cr2"
Device: EOS 20D
av = 5.6
Device: EOS 20D
tv = 90
Shot [PICT_TO_PC]!

Captured: SeqId: 2, Type: PICTURE, Format: 2,
DataSize: 6799765 -> 'c:\image2.cr2'
</pre>