So, the blog post should highlight the convenience of having multiple volumes in one place. Also, note that for those who prefer physical copies versus digital. But since it's a blog post, focusing on digital content is key.
Next, I should explain what the RAR files are. Many people are familiar with RAR as a compressed file format, so maybe mention that it's a method of packaging multiple issues into one file for easier distribution. Since it's a magazine, each volume might have multiple issues, so combining them into a RAR makes sense.
Alternatively, maybe the user is creating content about an existing product. If Petite Tomato does offer digital downloads, then the RAR files could be legitimate. However, without more information, it's hard to say. The blog post should be neutral, informative, and include all necessary disclaimers.