Earlier versions might have used standard definition (SD) or low-bitrate encodes. Version 29 often signifies a jump to 1080p or 4K, providing a much crisper viewing experience.
For sites that have gone offline or changed their business models, these "better" siterips are often the only remaining record of the original content in its highest possible quality. Technical Specifications to Look For cinemagropers siterip 29 better
A "better" version often fills in gaps—missing scenes or clips that were omitted in previous releases. Earlier versions might have used standard definition (SD)