Swnio'n iawn i mi ac mae o leiaf un enghraifft ohono ar Google http://www.bbwo.org.uk/broadband-3044-lang=cy sef gwefan arsyllfa band eang Cymru.
 
Muiris

 
On 15/09/06, David Bullock <[log in to unmask]> wrote:
Dyma'r diffiniad symlaf:

"The transmission, or flow, of binary data (bits)"

a dyma enghraifft o frawddeg:

"After enjoying a quasi-monopoly of its own lines for some time,
competition to Deutsche Telekom emerged in April 2004 when a wholesale
product was enforced upon it, allowing retail ISPs to resell the
incumbent's lines. Despite the recent success of reselling, there are no
plans for the introduction of a bitstream product into the market and
uncertainty over regulation of the wholesale market means that a bitstream
product is unlikely to be launched in the near future."

Os "did" yw "bit", ac os "llif" yw "stream", ydy hynny'n golygu
mai "didlif" yw "bitstream"?