I'm recording my own video clips though. I record them through VLC, which then saves them as .mpg. I want to convert these .mpg though to .mp4, but handbrake only converts the video, and the audio doesn't come through.
Isn't there a program that will convert my .iso file to one big .mp4 file?
Afterthought: What do you mean with "recording my own clips"? You have selected only a part of a title and recorded that in order to do the conversion? Or see
below.
Then please try this for a change: Double click the .iso file in Finder, thus it is mounted and can be visible in Finder's Sidebar under
Devices.
Then click on that mounted object (probably has the name of the original video DVD or a name you gave it) and look for an AUDIO_TS and VIDEO_TS folder.
If those are there, you will be faster with HandBrake and do not even need VLC Player to do what you want.
Once that .iso is mounted, you open HandBrake (it is a free application after all and used for transcoding video DVDs into an .mp4 or .m4v or even .mkv file.
In HandBrake, select that VIDEO_TS folder and press OPEN.
Then under the
Title: dropdown menu select the title you want and apply the NORMAL setting and then press
Add to Queue.
Repeat that Title selection and Add to Queue algorithm until you have select all titles.
If that is too much or there are too many titles to make that worthwhile,
please be as precise as you can describing your VLC Player method, preferably a step-by-step explanation, thus we can help with the more incompetent (in the regard of ease of use when transcoding video compared to HandBrake) VLC Player and the problem you have.
There is also
MPEG Streamclip, which can even combine several titles to one file. But that would mean, you have to have access to the VIDEO_TS folder, if it is there.
If you want me to describe the process, I can surely make something for you.