Animation Source has conducted several interviews with Phil Weinstein, the director of Simba's Pride, Balto II and Balto III. The first one was conducted by Steet himself in 2006 and the questions are mostly about Balto movies. You can view it by clicking this link.
The second interview was conducted by Sourcecast in 2011. This was an audio interview, which you can hear by clicking here. The transcript of the interview can be viewed by clicking this link. In this interview Phil Weinstein tells more about his other movies and work, also answering the famous question about Kopa.
Sourcecast conducted a follow-up interview with Mr. Weinstein in 2012. You can read it by clicking this link.