- Projector Comparision: Sanyo PLV-Z4 vs. Panasonic AE900U Projectors - An Overview
- Projector Comparison: Image Quality Sanyo Z4 vs Panasonic AE900u-1
- Projector Comparison: Image Quality Sanyo Z4 vs Panasonic AE900u-2
- Projector Comparison: Image Quality Sanyo Z4 vs Panasonic AE900u-3
- Projector Comparison: Image Quality Sanyo Z4 vs Panasonic AE900u-4
- Sanyo PLV-Z4 vs. Panasonic AE900U - Projector Ergonomics
- Projector Comparison Summary: Z4 vs PT-AE900u-1
- Projector Comparison Summary: Z4 vs PT-AE900u-2