Epson PowerLite 835p User Manual page 180

You can't edit scenario files in EMP SlideMaker after they
have been transferred to the memory card.
You can only edit scenarios before they are transferred. Open the
scenario files saved on your hard drive, make any changes, then
transfer the scenario to your memory card.
You can't transfer your slideshow to the memory card
because you aren't able to see the card's drive letter.
You must insert the memory card in your computer's PCMCIA slot
before you select from the Scenario Option(s) menu.
Send Scenario
If this happens, close and restart EMP SlideMaker 2. Make sure your
card is inserted before you select .
Send Scenario
You can't play your movies on the projector.
The projector only supports MPEG2 files. It does not support
MPEG1 files.
EasyMP is unable to see the image files on your camera or
external drive.
Make sure your camera or drive shows up on your desktop as a drive
letter when you connect it to your computer. If it does, it is probably a
USB-mounted device and will work with your projector. The
projector does not support TWAIN-compliant digital cameras.
Solving Problems
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