What differentiates a good podcast from a poor one?

What will be an ideal response?

Podcasting resembles other media in this respect: The best communications are
those that take into account the targeted audience, the purpose of the message,
and the qualities of the medium. The dynamics of podcasting are identical to
radio. (In the case of video podcasting, the dynamics are identical to those of
television.) Effective use of voice, music, and sound effects will improve the
quality of the program. However, the degree to which one uses these production
elements depends on the targeted public and your purpose. With some publics,
such as younger consumers, podcasters may want to use all of the "bells and
whistles" in their arsenal. However, if the audience is a group of potential
investors, what podcasters say may be more important than how they say it.