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Out of Date Driver or Program Problem

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5 replies

by wspadget

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I'm testing a new app on a Compaq Pressario 1200 and I get a "MMSYSTEM257 Invalid MCI device ID. Use the ID returned when opening the MCI device." message when the application tries to access the CD_ROM drive and it is not already turning. Driver problem or did the programmer miss the boat?

5 replies

by thechas

If the CD works fine for other uses, I have 2 suspects;

Either the program requires a faster data transfer rate from the CD than the system provides.

Or, as you suggest, the programmer used an undocumented option, or did not test the code across enough platforms.

Chas

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