A CBZ file acts as a ZIP-based comic archive, storing files like `001. Here is more information about CBZ file download look at the page. jpg`, `002.jpg`, and possibly `ComicInfo.xml` so apps can display pages reliably; reading it gives features like zoom and page flipping, and extraction is as simple as opening it with archive software, with CBZ widely used because it avoids the chaos of loose folders and preserves page order.

A CBZ file being "a ZIP file with a comic label" shows that CBZ is just ZIP in disguise, prompting comic apps to handle the file as a sequence of pages instead of a simple compressed folder; because the structure is still ZIP, renaming it to .zip or opening it directly with archive software works the same as any other ZIP, with extension-based app handling being the key factor.

A CBZ and a ZIP can be functionally the same archive, but .cbz enables automatic detection in comic apps, letting them present pages with features like page flipping and right-to-left reading, whereas .zip generally opens as a compressed folder; CBZ relies on ZIP for broad compatibility, with CBR (RAR-based), CB7 (7z-based), and CBT (TAR-based) providing similar image bundles but with different levels of app support.

In real-world terms, the "best" format is simply the one that opens instantly in your comic reader, making CBZ a strong default thanks to ZIP’s ubiquity, while others work if supported; when opened in a comic reader, a CBZ becomes a flowing page-based experience with zoom and navigation, rather than a set of images you must extract manually.

A comic reader app "reads" a CBZ by treating the ZIP container as a book of images, filtering out non-page items, sorting filenames into the correct order, and then selectively decompressing the current and upcoming pages to memory for fast navigation, applying your view settings (scrolling, zoom, spreads), remembering your last page, and creating a cover preview for the library interface.

Inside a CBZ file you typically find page files organized inside a ZIP wrapper, usually JPEGs with the occasional PNG/WEBP, named in numeric order so sorting behaves properly; a cover file may be explicitly named or simply the first page, and although folders and metadata like `ComicInfo.xml` may appear, plus the odd junk file, the main purpose is a clean sequence of images for comic readers.