Questions[conversion](ubuntu)

What is the correct way of converting one or more .png files to .icns files?.

I've installed icnsutils but I'm having a hard time figuring out how to work with png2icns.

For testing, I want to convert an MP3 and WAV file I have to Opus, what are the steps to doing this?

I'm trying to convert a PDF file (it's a book) into an image.

When I using convert like this

convert book.pdf book.jpg

or like this

convert book.pdf book.png

then I get this warning

Warning: Short look-up table in the Indexed color space was padded with 0's

for each page.

Is there some other tool I can use for conversion to get a bunch of images for this, or can someone show me a different way to solve this problem?

I've been using recordMyDesktop to record stuff. A little slow to compile but it records fine. However, when I try to convert from ogv to avi (I've used Devede and an mencoder script) the audio and video go out of sync.

Here's the script for reference:

#!/bin/bash
# ogv to avi
# Call this with multiple arguments
# for example : ls *.{ogv,OGV} | xargs ogv2avi
N=$#;
echo "Converting $N files !"
for ((i=0; i<=(N-1); i++))
do
echo "converting" $1
filename=${1%.*}
#mencoder "$1" -ovc xvid -oac mp3lame -xvidencopts pass=1 -o $filename.avi
mencoder "$1" -o $filename.avi -oac mp3lame -lameopts fast:preset=standard -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=4000
shift 1
done

Are there good reliable video converters out there? :)

I have a folder containing a bunch of ppts, each of which I'd like to convert to an individual pdf.