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"One of the biggest issues concerning UHD/4K is how it will be encoded/compressed and what bit rate will be required to convey a high-quality image. As I've written before, everyone at NAB 2014 seems to have settled on H.265 (aka HEVC or High-Efficiency Video Coding) as the codec of choice for UHD/4K. HEVC is said to offer up to 50 percent greater efficiency than H.264 (aka AVC or Advanced Video Coding), which is often used for high-def content, and even greater gains in efficiency over MPEG-2.   So I was particularly interested in a presentation called "Bit Rate Requirements for HEVC: Comparing H.265, H.264, and MPEG-2" by John Pallett, Director of Product Marketing for Enterprise Products at Telestream, a company that provides video capture, encoding, transcoding, and network-based delivery. The testing he discussed was based on SD and HD content, not UHD, but the findings should apply similarly."

Very useful tool for generating QR codes.

"Every now and again, I've wished that I had an ASCII chart handy, so I made one and stuck it on this page so that I could find it in a hurry. One thing led to another, and folks started asking me questions about ASCII and other character representations, so I've tried to update this page a bit to answer some of the most common questions. Also, I've added additional info,such as IBM PC Keyboard Scan Codes, and a list of other references."

"Introduction: 1. What is Acrobat JavaScript? 2. What can you do with Acrobat JavaScript? 3. Where can I read more about Acrobat JavaScript? 4. How to create a batch sequence with JavaScript code? 5. Sample Acrobat JavaScripts: Introduction"