She did. She's my niece. Still a bit cranky at times at 4yo, but she'll grow out of it.
Each one shows minimum of 1MB. Is that big?
Not particularly big no. I know there are some online slideshow generators that will handle files that are around 1mb each but those links are on my other computer.
I still think you just had a bad audio file with Impressions.
I have hundreds of song that could be imported to the slide show, just not the one I want.