Mini DV (Digital Video)
DV first burst onto the scene in 1995 and it immediately became the standard for professional, semi-professional, and home video recording. DV comes in five different sizes x-large, large, medium, small and mini.
Advantages
-Mini DV tapes are cheap to buy. (as low as $5 each)
- Cost efficient storage capacity – A standard Mini DV holds 19.5 GB which is around .25 cents / GB.
- Converts easily from standard to HD
- Tapes are easily labeled and ideal for long-term storage
Disadvantages
- Transferring footage requires a fire wire connection (Most stock PC’s lack this)
- Real time log and capture - A 60-minute tape will take 60 minutes to transfer
- Fragile: The tapes are sensitive to heat and cold
- Image quality degrades after each recording pass
- Records only 60-90 minutes
SD Cards (Secure Digital)
SD is a type of memory card that was first developed in 1999 by Scandisk, Matsushita and Toshiba to compete with Sony’s memory stick format. As the new tapeless technologies are evolving each year, SD cards are becoming very popular. SD companies continue to develop new formats such as SDHC, SDXC and SDIO. They continue to expand the limits of Secure Digital formats.
Advantages
- Log and transfer files much faster than transferring footage from tapes in real time.
- Can be used over and over again without losing image quality.
- A 16 GB card can record up to 2 hours of footage
- Future SD cards will allow up to 2 Terabytes of memory.
Disadvantages
- Most formats such as SD, SDHC, and SDXC are incompatible with each other.
- Expensive – A 16 GB SDHC card cost $40.
- To re-use cards, data must be transferred to an alternate medium before using card again.
John Leonard
Intern, Propulsion Media labs
Telecommunications, Penn State University
1 comment:
Quality is what all is looking for, although the mini dv is that slow, it produces better quality than the sd card. However one can not run away from the fact that the sd card is much faster and more convenient to use in most cases.
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