Sony pcm d50 can use those cards.

Sony pcm d50 can use ms card, that is, memory stick Duo.

Since you want to hear what TF card memory card SD card is, I'll tell you about it.

TF card: TF is a small card, SD is a big card, and they are all flash cards. TF card has the smallest volume and can be used as SD card after SD card conversion. Adapters can be used on devices that use SD as storage media. TransFlash is mainly developed for camera phones, which are used to shoot large images and download large video clips. TransFlash card can be used to store personal data, such as digital photos, MP3 players, games, mobile phone applications and personal data. , and also built-in copyright protection management system to protect downloaded music, videos and games. In the future, the new TransFlash will also be equipped with encryption function to protect personal data, financial records and medical care documents. The compact TransFlash allows the manufacturer to adopt this design without worrying about the size of the mobile phone. Another flexible application is that the supplier can replace it according to the different needs of customers at any time before delivery, which is an advantage that embedded flash memory does not have.

Memory stick: Memory stick, also known as MS card, is a removable flash memory card format storage device, which was made by Sony Corporation and introduced to the market in 1998+ 10. It also summarizes the whole memory stick memory card series. This series includes Memory Stick PRO (allowing better maximum storage capacity and faster transmission speed), Memory Stick Duo(Memory Stick format version, including PRO Duo) and Memory Stick Micro (M2) smaller than Duo. Memory stick family is very large and varied. Generally speaking, it can be divided into the following categories: blue memory stick, commonly known as "blue bar", is the most used memory stick, mostly used in digital cameras and digital cameras. With copyright protection function, it is mostly used in Sony's digital walkman; "Memory stick Pro" is a newly released memory stick specification, and there is no Chinese name at present. It not only has the same copyright protection function as the white strip, but also is extremely fast, with a capacity of 32GB. "Memory stick DUO" is the smallest memory stick family at present. It can be compatible with the memory stick interface through the adapter. Also divided into blue and white. The blue one is called "memory stick DUO", and the white one is called "memory stick PRO MAGICGATE", which has copyright protection function and larger capacity.

Vest card: It's just an MS card holder. Insert TF card, just like TF to SD ~ this is TF to MS, which is said to be better than the general group bar.