Castr blog
Live streaming guides from the team that runs it.
Practical articles on broadcasting, encoding, hosting, monetization, and everything in between, written by the Castr team.
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Livestream
Progressive vs Interlaced: Which Scan Type Delivers Better Video Quality for Streaming?
Progressive scanning draws every line in one pass; interlaced alternates odd and even lines, showing half a frame at a time. Compare both.
Feb 12, 2026 · 10 min
CDN
What Is a Video CDN? How Content Delivery Networks Power Seamless Streaming
A video CDN distributes your video through geographically spread edge servers, cutting latency and buffering for smoother streaming worldwide.
Feb 11, 2026 · 13 min
Streaming Protocol
RTSP: Real-Time Streaming Protocol Explained
RTSP (Real-Time Streaming Protocol) is a network protocol that controls streaming media servers and sets up media sessions between client and server.
Feb 11, 2026 · 10 min
Tips & Tricks
10 Best Live Streaming Software for Churches
Discover the best live streaming software for churches, including Castr, Restream, StreamYard, OBS, Boxcast, Vimeo, Facebook, YouTube, Dacast, and Wirecast.
Jan 29, 2026 · 19 min
Tips & Tricks
HDMI vs SDI: Complete Guide to Video Connectors for Professional Streaming
SDI & HDMI are the two most popular connectors used for data transmission. Know the differences between them and choose one that fits you.
Jan 29, 2026 · 14 min
Video Hosting
What is Video Hosting?
Video hosting is a cloud-based service that stores, encodes, and delivers video content to viewers through streaming technology.
Jan 29, 2026 · 16 min
Tips & Tricks
10 Best Streaming Software for Twitch in 2026
Whether you’re a gaming streamer building your channel, a church reaching your congregation online, or a business hosting webinars, streaming software is t
Jan 20, 2026 · 24 min
Codec
Video Codecs 101: How Video Compression Powers Streaming
A video codec compresses and decompresses video for storage, transmission, and playback, combining “coder” and “decoder” functions.
Dec 29, 2025 · 20 min
Tips & Tricks
H.264 vs H.265: Complete Video Codec Comparison Guide for Streamers
H.265 offers better compression and quality at smaller file sizes than H.264. H.264 is more widely supported and easier to use across devices.
Dec 23, 2025 · 16 min
Tips & Tricks
11 Best JW Player Alternatives for Video Streaming in 2026
JW Player has been around for years—and for good reason. It’s fast, reliable, and built to handle high-quality video streaming at scale. Marketers, publish
Dec 13, 2025 · 18 min
Tips & Tricks
9 Best Wistia Alternatives for Video Hosting
Looking for Wistia alternatives? Compare Castr, Vidyard, Vimeo, SproutVideo, Brightcove, JW Player, Dacast, Cincopa, and YouTube for video hosting.
Dec 13, 2025 · 13 min
Tips & Tricks
10 Best Vimeo OTT Alternatives to Power Your Video Streaming in 2026
Looking for Vimeo OTT alternatives? Compare Castr, VPlayed, Uscreen, Dacast, Brightcove, JW Player, Muvi, Kaltura, Flicknexs & Wistia.
Dec 11, 2025 · 12 min
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