What's a good format for an intermediary output?

I'll looking forward to collaborating with another person in a project in which I'll be producing edited video clips to be combined with others.

I normally output to MP-4, but when the intent is to include that in another work, is there a better output format?

Prores, perhaps 422 for a Mac/Mac workflow.
DNxHD for a Mac/PC or PC/PC workflow.
Cineform as the dark horse...

These formats are standards for such work, but they take LOTS more storage space than MP4. A reasonably high bitrate MP4 can be very, very good.

What editing software/platform?

SailingAway wrote in post #18594058
Prores, perhaps 422 for a Mac/Mac workflow.
DNxHD for a Mac/PC or PC/PC workflow.
Cineform as the dark horse...

These formats are standards for such work, but they take LOTS more storage space than MP4. A reasonably high bitrate MP4 can be very, very good.

What editing software/platform?

Premiere Pro on Windows. Media Encoder is available.

A little out of my current wheelhouse.

I’d look at the free download of DNxHD *from AVID*, (not from any third-party site), if it’s not part of Premiere.

RDKirk wrote in post #18593851
I'll looking forward to collaborating with another person in a project in which I'll be producing edited video clips to be combined with others.

I normally output to MP-4, but when the intent is to include that in another work, is there a better output format?

In case you haven't resolved this, usually you want an uncompressed file format for editing purposes. MP4 (and MKV for that matter) is a container. Inside the container is one or more tracks, usually an audio track and a video track. Compressed video is often in h.264 or the increasingly popular h.265 codec. These need to be decompressed into an editable format, as SailingAway noted, for use in editing software.