HDMI to NTSC Composite adapter advice.

[qriusGate]

Dear Community,

A few months back, I was able to get a small Pico Projector from the local electronics store that uses NTSC to communicate. It works great with game systems, DVD players, and most notably the Raspberry Pi. I would like to use this projector with other systems, so I looked up ways to convert HDMI to NTSC. There is a small converter (about the size of the pi) for $5-$15 (depending on source), but its reliability is rather abysmal. There are more expensive options ($40-$80), but those are almost always larger, and I would prefer to spend less money.

So, I have 2 queries:
1. Does anyone have recommendations on HDMI to NTSC converters? (primarily for use with other microcomputers that lack a composite port)
2. Is there any software that I can use to connect my Laptop's headphone jack and use that as an NTSC source? (I already have the required cables for use with the Pi)

[mahjongg]

1. Does anyone have recommendations on HDMI to NTSC converters? (primarily for use with other microcomputers that lack a composite port)

You wont find much help here, any PI user would not have a need for such a device, your question is fully off topic here!

2. Is there any software that I can use to connect my Laptop's headphone jack and use that as an NTSC source? (I already have the required cables for use with the Pi)

No that is nonsense, you cannot use software to create a video output from a sound card, that is wishful thinking stuff.

moved your post to off topic, (instead of just deleting it) on the pure chance that someone knows more, and changed the subject to something that makes sense.